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    <title>Peptide Source Review: vendor score changes</title>
    <link>https://peptidesourcereview.info/changes</link>
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    <description>Every significant change to a peptide vendor's score, and every new vendor audit, with the audit note. Affiliate status never affects scores.</description>
    <language>en-us</language>
    <lastBuildDate>Fri, 06 Nov 2026 20:00:00 GMT</lastBuildDate>
    <item>
      <title>GhostLabz: first published at 6.14/10</title>
      <link>https://peptidesourcereview.info/vendor/ghostlabz/history#ghostlabz-2026-11-06-0</link>
      <guid isPermaLink="false">psr-score-ghostlabz-2026-11-06-0</guid>
      <pubDate>Fri, 06 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 6, 2026. lab 7.3 / shipping 3.0 / pricing 8.5 / tenure 1.9 / transparency 3.0. First audit after the vendor&apos;s submission. All 34 catalogue products have a certificate confirmed at the issuing laboratory (ILS Laboratories), so the testing gate does not apply. Three site statements are contradicted by the certificates or the laboratory (rule A7 CLAIM, -0.3), and four certificates print a lot that differs from the laboratory&apos;s record (rule A7 LOT, -0.2).</description>
    </item>
    <item>
      <title>NextSelf Labs: first published at 6.26/10</title>
      <link>https://peptidesourcereview.info/vendor/nextself-labs/history#nextself-labs-2026-11-06-0</link>
      <guid isPermaLink="false">psr-score-nextself-labs-2026-11-06-0</guid>
      <pubDate>Fri, 06 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 6, 2026. lab 7.1 / shipping 5.5 / pricing 6.9 / tenure 1.4 / transparency 3.0. First audit after the vendor&apos;s submission (reviewed 6 November 2026). 29 of 32 catalogue products have a certificate, all found at the issuing laboratory. LOT -0.2 and CLAIM -0.3. The ILS reports match reports issued to GhostLabz. Two GLP products are sold under code names (rule C9, -0.5 transparency).</description>
    </item>
    <item>
      <title>YourFitnessPeptides: 2.80 to 2.75 (-0.05)</title>
      <link>https://peptidesourcereview.info/vendor/yourfitnesspeptides/history#yourfitnesspeptides-2026-11-06-14</link>
      <guid isPermaLink="false">psr-score-yourfitnesspeptides-2026-11-06-14</guid>
      <pubDate>Fri, 06 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 6, 2026. Pricing re-checked on 6 November 2026 after the market medians were recalculated with GhostLabz and NextSelf Labs added pricing 8.1 to 7.8.</description>
    </item>
    <item>
      <title>Curo: 6.33 to 6.27 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/curo/history#curo-2026-11-05-10</link>
      <guid isPermaLink="false">psr-score-curo-2026-11-05-10</guid>
      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Pricing re-checked on 5 November 2026 after the market medians were recalculated pricing 3.9 to 3.5.</description>
    </item>
    <item>
      <title>Direct Peptides: 7.30 to 7.43 (+0.13)</title>
      <link>https://peptidesourcereview.info/vendor/direct-peptides/history#direct-peptides-2026-11-05-8</link>
      <guid isPermaLink="false">psr-score-direct-peptides-2026-11-05-8</guid>
      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Pricing re-checked on 5 November 2026 after the market medians were recalculated with Peptyes added pricing 4.9 to 5.8.</description>
    </item>
    <item>
      <title>Limitless Biotech: 6.90 to 6.97 (+0.07)</title>
      <link>https://peptidesourcereview.info/vendor/limitless-biotech/history#limitless-biotech-2026-11-05-9</link>
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      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Pricing re-checked on 5 November 2026 after the market medians were recalculated with Peptyes added pricing 4.6 to 5.1.</description>
    </item>
    <item>
      <title>Limitless Biotech: 6.84 to 6.90 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/limitless-biotech/history#limitless-biotech-2026-11-05-8</link>
      <guid isPermaLink="false">psr-score-limitless-biotech-2026-11-05-8</guid>
      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Pricing re-checked on 5 November 2026 after the market medians were recalculated pricing 4.2 to 4.6.</description>
    </item>
    <item>
      <title>Peptide.Express: 4.06 to 3.90 (-0.16)</title>
      <link>https://peptidesourcereview.info/vendor/peptide-express/history#peptide-express-2026-11-05-14</link>
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      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Full re-audit on 5 November 2026 after the company asked for an independent review. It has posted new Amino Metrics certificates for MOTS-c and tirzepatide, both confirmed at that laboratory, whose independence we could not establish. Our rules score the newest certificate for each product, so MOTS-c moved from a Freedom Diagnostics certificate to the flat score, and 1 of 21 products now has a certificate from a laboratory we could establish. Lab 2.3 to 2.0; operating history 1.6 to 1.7. Shipping, pricing and transparency are unchanged.</description>
    </item>
    <item>
      <title>Peptyes: first published at 6.55/10</title>
      <link>https://peptidesourcereview.info/vendor/peptyes/history#peptyes-2026-11-05-0</link>
      <guid isPermaLink="false">psr-score-peptyes-2026-11-05-0</guid>
      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 5, 2026. lab 7.9 / shipping 4.5 / pricing 5.5 / tenure 3.6 / transparency 6.0. First audit after the vendor&apos;s submission (reviewed 5 November 2026). All 31 catalogue products have a certificate found at the issuing laboratory (30 Horizon Analytical, 1 Optiq Health Labs); every certificate names another business, Privilege Bio Labs, as the client (SUPPLIER -0.5), and the four Optiq reports carry no identity test although the site says every batch is tested for identity (CLAIM -0.1). Three GLP products are sold under code names (rule C9, -0.5 transparency).</description>
    </item>
    <item>
      <title>Rogue Compounds: 6.60 to 6.91 (+0.31)</title>
      <link>https://peptidesourcereview.info/vendor/rogue-compounds/history#rogue-compounds-2026-11-05-2</link>
      <guid isPermaLink="false">psr-score-rogue-compounds-2026-11-05-2</guid>
      <pubDate>Thu, 05 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 5, 2026. Re-audited on 5 November 2026 after the company reported site changes; each was checked on the live site and every certificate was re-confirmed at the issuing laboratory. The site no longer claims ISO 17025 accredited testing or identity by mass spectrometry, so the two site-claim adjustments no longer apply: lab 7.3 to 7.5. The terms now give the same 48-hour window as the refunds page for damaged or incorrect items, so the contradiction deduction no longer applies: shipping 6.5 to 7.0. The terms now name Wyoming law and a mailing address, which the state registry lists as a private mailbox: transparency 4.0 to 6.0. Product pages list the current batch, test date, laboratory and purity with a link to the laboratory&apos;s record. Certificates still cover 32 of the 36 products we score.</description>
    </item>
    <item>
      <title>Cernum Biosciences: 4.97 to 4.69 (-0.28)</title>
      <link>https://peptidesourcereview.info/vendor/cernum-biosciences/history#cernum-biosciences-2026-11-04-11</link>
      <guid isPermaLink="false">psr-score-cernum-biosciences-2026-11-04-11</guid>
      <pubDate>Wed, 04 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 4, 2026. Lab evidence re-checked on 4 November 2026. The Janoshik reports tested on 3 November 2025 (GHK-Cu, MT-2, retatrutide and IGF-1 LR3) passed 12 months old and are the newest on record for those products, so under the published age rule (A6) each now carries the age deduction, alongside the older reports already past 12 months. Lab evidence 5.4 to 4.9.</description>
    </item>
    <item>
      <title>Honest Peptide: 7.66 to 7.71 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/honest-peptide/history#honest-peptide-2026-11-04-19</link>
      <guid isPermaLink="false">psr-score-honest-peptide-2026-11-04-19</guid>
      <pubDate>Wed, 04 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 4, 2026. Lab evidence re-checked on 4 November 2026. The MT-2 certificate (Freedom Diagnostics, search code Hone2607090241, lot ML1005152026) returned not found at the laboratory on 22 October and now resolves there with the same lot, purity (99.74%) and net content as the vendor&apos;s copy, so it earns the confirmed-key points. Lab evidence 8.0 to 8.1.</description>
    </item>
    <item>
      <title>JD BioWorks: 6.50 to 6.34 (-0.16)</title>
      <link>https://peptidesourcereview.info/vendor/jd-bioworks/history#jd-bioworks-2026-11-03-12</link>
      <guid isPermaLink="false">psr-score-jd-bioworks-2026-11-03-12</guid>
      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Certificates re-checked on 3 November 2026. The newest JD-2TR (tirzepatide) certificate the company posts is now a PuriLab Analytical report of 29 October 2026 for the 60 mg size, which resolves at PuriLab&apos;s own lookup. Under the published rule that the newest certificate per product counts (A6), tirzepatide is now scored from it, and because PuriLab&apos;s site names no operating company or street address it is not an established laboratory in our directory, so the certificate earns the minimum score. The earlier ILS certificates for the same product remain posted. Lab evidence 7.3 to 7.0.</description>
    </item>
    <item>
      <title>Lotus Peptide: 3.85 to 3.74 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/lotus-peptide/history#lotus-peptide-2026-11-03-3</link>
      <guid isPermaLink="false">psr-score-lotus-peptide-2026-11-03-3</guid>
      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Lab evidence re-checked on 3 November 2026. The company posted three certificates dated 30 October 2026 from Amino Metrics, a laboratory whose independence we could not establish, for tirzepatide, KPV and MOTS-c; all three were confirmed at that laboratory. Where a product has several certificates the newest is scored, so MOTS-c now rests on the Amino Metrics certificate, which scores a flat 2.0, instead of an earlier Freedom Diagnostics certificate. Lab 1.8 to 1.6.</description>
    </item>
    <item>
      <title>NextGen Peps: 6.37 to 5.93 (-0.44)</title>
      <link>https://peptidesourcereview.info/vendor/nextgen-peps/history#nextgen-peps-2026-11-03-14</link>
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      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Lab evidence re-checked on 3 November 2026. No certificate newer than those of 25 September 2026 had been published, and the 14 bioregulator products still have none. Thirteen products on sale on the vendor&apos;s site that our catalogue had not listed were added: Epitalon and Kisspeptin-10 carry Bioviridian certificates confirmed at the laboratory, and eleven out-of-stock products have no certificate, which count under our coverage rule. Certificates now cover 33 of the 58 products we list. Lab 6.9 to 6.1.</description>
    </item>
    <item>
      <title>PepBiotics: 2.28 to 2.23 (-0.05)</title>
      <link>https://peptidesourcereview.info/vendor/pepbiotics/history#pepbiotics-2026-11-03-6</link>
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      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Market medians updated on 3 November 2026 after the NextGen Peps re-check added priced listings: pricing 2.2 to 1.9.</description>
    </item>
    <item>
      <title>Peptide Pro: 5.69 to 5.63 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/peptide-pro/history#peptide-pro-2026-11-03-4</link>
      <guid isPermaLink="false">psr-score-peptide-pro-2026-11-03-4</guid>
      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Lab evidence re-checked on 3 November 2026. The sermorelin certificate (Freedom Diagnostics, reported 2 November 2025) passed 12 months old and is the newest one on record for that product, so under the published age rule (A6) it now counts as an older certificate. The certificate itself was re-confirmed at the laboratory. Lab evidence 6.1 to 6.0.</description>
    </item>
    <item>
      <title>Prime Peptides: 8.05 to 7.94 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/prime-peptides/history#prime-peptides-2026-11-03-6</link>
      <guid isPermaLink="false">psr-score-prime-peptides-2026-11-03-6</guid>
      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Market medians updated on 3 November 2026 after the Prime Peptides re-check added priced listings: pricing 7.0 to 6.3.</description>
    </item>
    <item>
      <title>Prime Peptides: 8.10 to 8.05 (-0.05)</title>
      <link>https://peptidesourcereview.info/vendor/prime-peptides/history#prime-peptides-2026-11-03-5</link>
      <guid isPermaLink="false">psr-score-prime-peptides-2026-11-03-5</guid>
      <pubDate>Tue, 03 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 3, 2026. Lab evidence re-checked on 3 November 2026. Seven products the company sells were missing from our listings and now count under our coverage rule (the CJC-1295/ipamorelin blend, MOTS-c, NAD+, glutathione, melanotan I, KLOW and GLOW); each has a certificate confirmed at the issuing laboratory, but the KLOW and GLOW reports carry no purity figure and the only melanotan I report is more than 12 months old. Sermorelin and tirzepatide are now scored from their newest certificates. Lab 8.7 to 8.6.</description>
    </item>
    <item>
      <title>Ameano Peptides: 7.70 to 7.80 (+0.10)</title>
      <link>https://peptidesourcereview.info/vendor/ameano-peptides/history#ameano-peptides-2026-11-02-9</link>
      <guid isPermaLink="false">psr-score-ameano-peptides-2026-11-02-9</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Ameano Peptides re-check of 2 November shipping and refunds 7.5 to 8.0.</description>
    </item>
    <item>
      <title>Amino Club: 8.03 to 8.08 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/amino-club/history#amino-club-2026-11-02-7</link>
      <guid isPermaLink="false">psr-score-amino-club-2026-11-02-7</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Transparency re-checked on 2 November 2026 after an independent re-audit. The terms name Amino Club LLC as the operator, so the legal entity now counts; the phone number shown at our October check is no longer on the site. Transparency 5.0 to 6.0.</description>
    </item>
    <item>
      <title>Arctic Lab Supply: 6.16 to 7.09 (+0.93)</title>
      <link>https://peptidesourcereview.info/vendor/arctic-lab-supply/history#arctic-lab-supply-2026-11-02-21</link>
      <guid isPermaLink="false">psr-score-arctic-lab-supply-2026-11-02-21</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026 after the company published new reports. All 20 current reports on its report page were confirmed at the issuing laboratory (13 Freedom Diagnostics, 7 ILS Laboratories), adding certificates for MOTS-c, NAD+, ipamorelin, semax, semaglutide, tirzepatide, TB-500 and IGF-1 LR3. Nine products newly offered as pre-orders have no report yet and count as uncovered under our coverage rule, and where a product has several reports the newest is scored. Certificates now cover 16 of the 26 products we list, so the testing cap no longer applies. Lab 4.5 to 6.2.</description>
    </item>
    <item>
      <title>BioLongevity Labs: 7.29 to 7.23 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/biolongevity-labs/history#biolongevity-labs-2026-11-02-14</link>
      <guid isPermaLink="false">psr-score-biolongevity-labs-2026-11-02-14</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Market medians updated after the 2 November re-checks pricing 3.6 to 3.2.</description>
    </item>
    <item>
      <title>GenX Bio: 3.90 to 4.39 (+0.49)</title>
      <link>https://peptidesourcereview.info/vendor/genx-bio/history#genx-bio-2026-11-02-11</link>
      <guid isPermaLink="false">psr-score-genx-bio-2026-11-02-11</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Catalogue re-checked on 2 November 2026 from the signed-in catalogue, read in the owner&apos;s browser: tirzepatide (GP-2 TRZ), a KLOW blend, NAD+ and SS-31 are on sale and in stock, so their Freedom Diagnostics certificates, confirmed at the laboratory, now count. Certificates cover 14 of the 37 products we list. The third-party testing cap still applies. Lab 2.0 to 2.9.</description>
    </item>
    <item>
      <title>GenX Bio: 3.68 to 3.90 (+0.22)</title>
      <link>https://peptidesourcereview.info/vendor/genx-bio/history#genx-bio-2026-11-02-10</link>
      <guid isPermaLink="false">psr-score-genx-bio-2026-11-02-10</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026 after the company published new reports. A Freedom Diagnostics certificate for retatrutide (GP-3 RT), with separate lots for each size, was confirmed at the laboratory, so certificates now cover 10 of the 33 products we list. Reports for tirzepatide, a KLOW blend, NAD+ and SS-31 were also confirmed at the laboratory but are not counted yet, because the catalog sits behind a login and we could not confirm those products are offered for sale. The third-party testing cap still applies. Lab 1.6 to 2.0.</description>
    </item>
    <item>
      <title>Hacker Peptides: 6.67 to 6.32 (-0.35)</title>
      <link>https://peptidesourcereview.info/vendor/hacker-peptides/history#hacker-peptides-2026-11-02-7</link>
      <guid isPermaLink="false">psr-score-hacker-peptides-2026-11-02-7</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Shipping and transparency re-checked on 2 November 2026 after an independent re-audit. All sales are final and damaged or wrong items are reviewed case by case with no stated reship, replacement or refund, and the shipping policy gives a processing time of 1 to 3 business days, so both items score lower. A phone number is now shown on the contact page. Shipping 6.5 to 4.5, transparency 5.0 to 6.0.</description>
    </item>
    <item>
      <title>JD BioWorks: 6.71 to 6.49 (-0.22)</title>
      <link>https://peptidesourcereview.info/vendor/jd-bioworks/history#jd-bioworks-2026-11-02-10</link>
      <guid isPermaLink="false">psr-score-jd-bioworks-2026-11-02-10</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. A Wolverine blend of BPC-157 and TB-500 was added to the catalogue in November 2026. Its certificate is from PuriLab Analytical, whose report resolves at its own lookup, but whose site names no operating company or street address, so it is not an established laboratory in our directory and the certificate earns the minimum score. Lab 7.7 to 7.3.</description>
    </item>
    <item>
      <title>NuScience Peptides: 6.49 to 6.43 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/nuscience-peptides/history#nuscience-peptides-2026-11-02-10</link>
      <guid isPermaLink="false">psr-score-nuscience-peptides-2026-11-02-10</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026. The melanotan II certificate (Freedom Diagnostics, reported 1 November 2025) passed 12 months old and is still the newest one the company posts for that product, so under the published age rule (A6) it now counts as an older certificate, alongside those for 5-amino-1MQ, IGF-1 LR3 and cagrilintide. The certificate itself was re-confirmed at the laboratory. Lab evidence 7.3 to 7.2.</description>
    </item>
    <item>
      <title>Pacific Edge Labs: first published at 7.15/10</title>
      <link>https://peptidesourcereview.info/vendor/pacific-edge-labs/history#pacific-edge-labs-2026-11-02-0</link>
      <guid isPermaLink="false">psr-score-pacific-edge-labs-2026-11-02-0</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 2, 2026. lab 8.4 / shipping 6.0 / pricing 6.6 / tenure 1.8 / transparency 5.0. First audit after the vendor&apos;s submission (reviewed 2 November 2026). 34 of 35 catalogue products have a certificate; 33 are Freedom Diagnostics Testing reports found at the laboratory, each matching the copy the store posts. The Epithalon certificate (Vanguard Laboratory) could not be confirmed with the laboratory, and OT Acetate has no certificate. Three GLP products are sold under code names (rule C9, -0.5 transparency).</description>
    </item>
    <item>
      <title>Peptara Labs: 2.66 to 2.38 (-0.28)</title>
      <link>https://peptidesourcereview.info/vendor/peptara-labs/history#peptara-labs-2026-11-02-11</link>
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      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026 after our ranking review of 26 October. All 16 Titreon Analytical certificates for products the company sells opened at Titreon&apos;s new lookup with their printed keys. Titreon was added to our lab directory and graded as a laboratory whose independence is not established, so the certificates keep the flat 2.0. The Janoshik reports on the site are endotoxin screens, not identity or purity certificates. Fifteen products newly offered as pre-orders have no certificate yet and count under our coverage rule. Lab 1.7 to 1.2.</description>
    </item>
    <item>
      <title>PepVial: 1.96 to 1.90 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/pepvial/history#pepvial-2026-11-02-13</link>
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      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Market medians updated after Snowman Research was added pricing 6.2 to 5.8.</description>
    </item>
    <item>
      <title>Snowman Research: first published at 3.05/10</title>
      <link>https://peptidesourcereview.info/vendor/snowman-research/history#snowman-research-2026-11-02-0</link>
      <guid isPermaLink="false">psr-score-snowman-research-2026-11-02-0</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 2, 2026. lab 0.0 / shipping 8.0 / pricing 8.8 / tenure 0.5 / transparency 2.0. First audit after the vendor&apos;s submission. No certificates of analysis are published, so each of the 15 catalogue products scores 0 for testing and the testing gate applies (0 of 15 confirmed); the gate&apos;s cap sits above the weighted score, so it does not lower it. Operating history is counted from the earliest dated customer review on the store, 27 October 2026.</description>
    </item>
    <item>
      <title>Spartan Peptides: 3.43 to 3.32 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/spartan-peptides/history#spartan-peptides-2026-11-02-9</link>
      <guid isPermaLink="false">psr-score-spartan-peptides-2026-11-02-9</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026. The TB-500 certificate&apos;s ID, read from its QR code, was confirmed at MZ Biolabs, so all six published certificates are now confirmed at the laboratory. Epithalon and NAD+, both sold on the site without a published certificate, were added to the products we list, so certificates cover 6 of 17 products and the third-party testing cap still applies. Lab 3.5 to 3.3.</description>
    </item>
    <item>
      <title>Swiss Chems: 5.50 to 5.39 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/swiss-chems/history#swiss-chems-2026-11-02-11</link>
      <guid isPermaLink="false">psr-score-swiss-chems-2026-11-02-11</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026 after our ranking review of 26 October. The newest certificate for each product was confirmed at the issuing laboratory, adding Freedom Diagnostics Testing or Janoshik certificates for Melanotan II, Tesamorelin, DSIP, Glutathione, MK-677 and HCG. Sixteen products the store sells were missing from our list and now count under our coverage rule; seven of them have no certificate and three carry vendor documents that name no laboratory. Certificates confirmed at a laboratory cover 22 of 49 products, below the half needed to lift the testing cap. Lab 4.8 to 4.6.</description>
    </item>
    <item>
      <title>Welon Peptide Solutions: 2.29 to 2.13 (-0.16)</title>
      <link>https://peptidesourcereview.info/vendor/welon-peptide-solutions/history#welon-peptide-solutions-2026-11-02-1</link>
      <guid isPermaLink="false">psr-score-welon-peptide-solutions-2026-11-02-1</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 2, 2026. Lab evidence re-checked on 2 November 2026. The store links the full Finnrick test history under each product, and under the published rule that the newest certificate per product counts (A6), the newest tests of retatrutide (17 July 2026, identity fail), BPC-157 (3 August 2026, fill 14% under label) and GHK-Cu (23 July 2026, fill 88% under label) now count in place of the earlier passing tests the store lists. Each reports a failed result, so each scores 0 (rule A4). Lab evidence 0.3 to 0.</description>
    </item>
    <item>
      <title>Welon Peptide Solutions: first published at 2.29/10</title>
      <link>https://peptidesourcereview.info/vendor/welon-peptide-solutions/history#welon-peptide-solutions-2026-11-02-0</link>
      <guid isPermaLink="false">psr-score-welon-peptide-solutions-2026-11-02-0</guid>
      <pubDate>Mon, 02 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 2, 2026. lab 0.3 / shipping 2.0 / pricing 9.5 / tenure 0.5 / transparency 5.5. First audit after the vendor&apos;s submission. 5 of 59 catalogue products carry a certificate, all Finnrick test results issued to Finnrick rather than to the store (rule A7 SUPPLIER), with keys that could not be confirmed at the laboratories (rule A5), so testing could not be independently verified; the About and FAQ pages name a laboratory that does not match the reports (rule A7 CLAIM). No returns, lost-parcel or dispatch policy; crypto-only checkout. Every product is sold only in boxes of 10 vials; prices are compared per vial at the one-box price (rule E2). The store opened on 29 October 2026 (rule D).</description>
    </item>
    <item>
      <title>Bluum Peptides: first published at 7.48/10</title>
      <link>https://peptidesourcereview.info/vendor/bluum-peptides/history#bluum-peptides-2026-11-01-0</link>
      <guid isPermaLink="false">psr-score-bluum-peptides-2026-11-01-0</guid>
      <pubDate>Sun, 01 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 1, 2026. lab 8.3 / shipping 6.5 / pricing 7.7 / tenure 3.2 / transparency 6.0. First audit after the vendor&apos;s submission. 44 of 45 catalogue products have a certificate, and all 44 were found at the issuing laboratory (Freedom Diagnostics Testing 32, Horizon Analytical 12). The home page names laboratories and a purity level that the posted certificates do not bear out (rule A7 CLAIM, -0.2).</description>
    </item>
    <item>
      <title>Cernum Biosciences: 5.24 to 4.97 (-0.27)</title>
      <link>https://peptidesourcereview.info/vendor/cernum-biosciences/history#cernum-biosciences-2026-11-01-10</link>
      <guid isPermaLink="false">psr-score-cernum-biosciences-2026-11-01-10</guid>
      <pubDate>Sun, 01 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 1, 2026. Lab score corrected on 1 November 2026: the stored sub-score read 5.9 while the uniform rule gives 5.4, because the three Janoshik reports tested on 31 October 2025 (BPC-157, CJC-1295, tesamorelin) passed 12 months on 31 October 2026 and each now carries the age deduction (rule A6), alongside the six reports from May 2025 already past 12 months; stored value corrected to the rule. Lab 5.9 to 5.4.</description>
    </item>
    <item>
      <title>Direct Peptides: 7.36 to 7.30 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/direct-peptides/history#direct-peptides-2026-11-01-7</link>
      <guid isPermaLink="false">psr-score-direct-peptides-2026-11-01-7</guid>
      <pubDate>Sun, 01 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 1, 2026. Market medians updated after Bluum Peptides was added pricing 5.3 to 4.9.</description>
    </item>
    <item>
      <title>PepVial: 1.90 to 1.96 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/pepvial/history#pepvial-2026-11-01-12</link>
      <guid isPermaLink="false">psr-score-pepvial-2026-11-01-12</guid>
      <pubDate>Sun, 01 Nov 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>November 1, 2026. Market medians updated after Bluum Peptides was added pricing 5.8 to 6.2.</description>
    </item>
    <item>
      <title>Stack Research: first published at 2.49/10</title>
      <link>https://peptidesourcereview.info/vendor/stack-research/history#stack-research-2026-11-01-0</link>
      <guid isPermaLink="false">psr-score-stack-research-2026-11-01-0</guid>
      <pubDate>Sun, 01 Nov 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>November 1, 2026. lab 0.0 / shipping 7.5 / pricing 4.6 / tenure 0.5 / transparency 5.5. First audit after the vendor&apos;s submission. All 22 catalogue products have an Accumark Labs report whose key the laboratory confirms, but each posted copy prints a different client from the laboratory&apos;s own copy (rule A4), so every certificate scores 0 and none counts toward the testing gate; every report is issued to another business (rule A7 SUPPLIER, -0.5). No operating history before this audit could be established (rule D).</description>
    </item>
    <item>
      <title>Lotus Peptide: 3.79 to 3.85 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/lotus-peptide/history#lotus-peptide-2026-10-31-2</link>
      <guid isPermaLink="false">psr-score-lotus-peptide-2026-10-31-2</guid>
      <pubDate>Sat, 31 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 31, 2026. Lab score corrected on 31 October 2026: the stored sub-score read 1.7 while the publication note of 26 October and the uniform rule both give 1.8. Two Amino Metrics certificates (KPV 10mg, Tirzepatide 20mg) added to the listing on 31 October score the flat 2.0 for a laboratory whose independence is not established, and leave the rule value at 1.8. Lab 1.7 to 1.8.</description>
    </item>
    <item>
      <title>Redline Bio Labs: 4.58 to 4.80 (+0.22)</title>
      <link>https://peptidesourcereview.info/vendor/redline-bio-labs/history#redline-bio-labs-2026-10-31-15</link>
      <guid isPermaLink="false">psr-score-redline-bio-labs-2026-10-31-15</guid>
      <pubDate>Sat, 31 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 31, 2026. Lab score recalculated on 31 October 2026 under the uniform rule: five AV Analytics certificates issued on 27 October 2026 (Ipamorelin batch IPA-005, Oxytocin OXY-002, PT-141 PT-002, Sermorelin SER-005, TB-500 TB-006) were added to the listing from the vendor&apos;s lab-reports page, each earning 3 base points plus 2 for a laboratory in our directory, with no printed verification key and no purity figure; the laboratory lookup for AV Analytics remains unconfirmed on the vendor&apos;s own page. Lab 3.3 to 3.7.</description>
    </item>
    <item>
      <title>Peptides Source: 7.44 to 7.33 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/peptides-source/history#peptides-source-2026-10-30-13</link>
      <guid isPermaLink="false">psr-score-peptides-source-2026-10-30-13</guid>
      <pubDate>Fri, 30 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 30, 2026. Lab score recalculated on 30 October 2026 under rule A6 (certificate age): the TB-500 and GLOW certificates, tested on 27 October 2025, became older than 12 months on 28 October 2026, and each certificate older than 12 months counts for a quarter less. Lab 8.1 to 7.9.</description>
    </item>
    <item>
      <title>Prime Peptide Solutions: 5.54 to 7.14 (+1.60)</title>
      <link>https://peptidesourcereview.info/vendor/prime-peptide-solutions/history#prime-peptide-solutions-2026-10-30-18</link>
      <guid isPermaLink="false">psr-score-prime-peptide-solutions-2026-10-30-18</guid>
      <pubDate>Fri, 30 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 30, 2026. Re-check on 30 October 2026: on 28 October the vendor posted certificates for the ten products that had none (nine BT Labs reports tested on 26 October 2026 and an ILS certificate for NAD+). The ILS certificate was confirmed at the laboratory&apos;s portal; the BT Labs reports sit behind an identity form at the laboratory, so they count as key printed but not confirmed. Every one of the 20 products we list now has a certificate. Lab 4.4 to 7.3.</description>
    </item>
    <item>
      <title>Sports Technology Labs: 6.99 to 6.88 (-0.11)</title>
      <link>https://peptidesourcereview.info/vendor/sports-technology-labs/history#sports-technology-labs-2026-10-30-11</link>
      <guid isPermaLink="false">psr-score-sports-technology-labs-2026-10-30-11</guid>
      <pubDate>Fri, 30 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 30, 2026. Lab score recalculated on 30 October 2026 under rule A6 (certificate age): the PEG-MGF certificate, tested on 29 October 2025, became older than 12 months on 30 October 2026 and joins the four certificates tested on 17 October 2025 that already were; each certificate older than 12 months counts for a quarter less. Lab 6.8 to 6.6.</description>
    </item>
    <item>
      <title>Ageless Peptides: first published at 4.36/10</title>
      <link>https://peptidesourcereview.info/vendor/ageless-peptides/history#ageless-peptides-2026-10-29-0</link>
      <guid isPermaLink="false">psr-score-ageless-peptides-2026-10-29-0</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 29, 2026. lab 3.1 / shipping 6.5 / pricing 7.0 / tenure 0.5 / transparency 5.5. First audit after the vendor&apos;s submission. 9 of 20 catalogue products have a certificate, all from Vanguard Laboratory and all addressed to the vendor&apos;s supplier (rule A7 SUPPLIER, -0.5); none could be confirmed at the laboratory&apos;s lookup, so testing is not independently verified (cap 6.5, not reached). Two site claims about testing are not borne out by the certificates (rule A7 CLAIM, -0.2).</description>
    </item>
    <item>
      <title>AminoWave Labs: first published at 5.85/10</title>
      <link>https://peptidesourcereview.info/vendor/aminowave-labs/history#aminowave-labs-2026-10-29-0</link>
      <guid isPermaLink="false">psr-score-aminowave-labs-2026-10-29-0</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 29, 2026. lab 6.6 / shipping 4.0 / pricing 8.4 / tenure 1.2 / transparency 2.0. First audit after the vendor&apos;s submission (reviewed 27 October 2026). 10 of 11 catalogue products have a certificate, all from Freedom Diagnostics Testing; nine were found at the laboratory, each identical to the laboratory&apos;s file. The Selank certificate was not found at the laboratory and itself reports a failed identity test, so it scores 0 under rule A4. Three site claims about testing are not borne out by the certificates (rule A7 CLAIM, -0.3).</description>
    </item>
    <item>
      <title>Arctic Lab Supply: 6.11 to 6.16 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/arctic-lab-supply/history#arctic-lab-supply-2026-10-29-18</link>
      <guid isPermaLink="false">psr-score-arctic-lab-supply-2026-10-29-18</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Market medians updated after Delix Labs and Ageless Peptides were added pricing 7.9 to 8.2.</description>
    </item>
    <item>
      <title>Delix Labs: first published at 4.49/10</title>
      <link>https://peptidesourcereview.info/vendor/delix-labs/history#delix-labs-2026-10-29-0</link>
      <guid isPermaLink="false">psr-score-delix-labs-2026-10-29-0</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 29, 2026. lab 4.5 / shipping 5.5 / pricing 5.0 / tenure 1.3 / transparency 2.0. First audit after the vendor&apos;s submission. 14 of 24 catalogue products have a Janoshik report, and all 14 were found at the laboratory; none names Delix Labs as the client (rule A7 SUPPLIER, -0.5). Product pages show another product&apos;s test key, and the COA page lists a purity figure for three reports that give none (rule A7 CLAIM, -0.2).</description>
    </item>
    <item>
      <title>FRO Peptides: 6.61 to 6.67 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/fro-peptides/history#fro-peptides-2026-10-29-7</link>
      <guid isPermaLink="false">psr-score-fro-peptides-2026-10-29-7</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 7.2 to 7.3.</description>
    </item>
    <item>
      <title>Hello Stacks: 6.01 to 6.07 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/hello-stacks/history#hello-stacks-2026-10-29-10</link>
      <guid isPermaLink="false">psr-score-hello-stacks-2026-10-29-10</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 5.7 to 5.8.</description>
    </item>
    <item>
      <title>Lotus Peptide: 3.85 to 3.79 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/lotus-peptide/history#lotus-peptide-2026-10-29-1</link>
      <guid isPermaLink="false">psr-score-lotus-peptide-2026-10-29-1</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 1.8 to 1.7.</description>
    </item>
    <item>
      <title>Nextday Peptides: 3.14 to 3.20 (+0.06)</title>
      <link>https://peptidesourcereview.info/vendor/nextday-peptides/history#nextday-peptides-2026-10-29-16</link>
      <guid isPermaLink="false">psr-score-nextday-peptides-2026-10-29-16</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 2.9 to 3.0.</description>
    </item>
    <item>
      <title>OMNI Peptides: 6.06 to 6.17 (+0.11)</title>
      <link>https://peptidesourcereview.info/vendor/omni-peptides/history#omni-peptides-2026-10-29-13</link>
      <guid isPermaLink="false">psr-score-omni-peptides-2026-10-29-13</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 6.5 to 6.7.</description>
    </item>
    <item>
      <title>Peptide Labs: 3.65 to 3.70 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/peptide-labs/history#peptide-labs-2026-10-29-9</link>
      <guid isPermaLink="false">psr-score-peptide-labs-2026-10-29-9</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 1.8 to 1.9.</description>
    </item>
    <item>
      <title>PepVial: 1.96 to 1.90 (-0.06)</title>
      <link>https://peptidesourcereview.info/vendor/pepvial/history#pepvial-2026-10-29-11</link>
      <guid isPermaLink="false">psr-score-pepvial-2026-10-29-11</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Market medians updated after Delix Labs and Ageless Peptides were added pricing 6.2 to 5.8.</description>
    </item>
    <item>
      <title>Pinnacle Peptide Labs: 6.49 to 6.60 (+0.11)</title>
      <link>https://peptidesourcereview.info/vendor/pinnacle-peptide-labs/history#pinnacle-peptide-labs-2026-10-29-12</link>
      <guid isPermaLink="false">psr-score-pinnacle-peptide-labs-2026-10-29-12</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 6.8 to 7.0.</description>
    </item>
    <item>
      <title>RapidCore Bio: 3.21 to 3.26 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/rapidcore-bio/history#rapidcore-bio-2026-10-29-5</link>
      <guid isPermaLink="false">psr-score-rapidcore-bio-2026-10-29-5</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 1.2 to 1.3.</description>
    </item>
    <item>
      <title>Redline Bio Labs: 4.53 to 4.58 (+0.05)</title>
      <link>https://peptidesourcereview.info/vendor/redline-bio-labs/history#redline-bio-labs-2026-10-29-14</link>
      <guid isPermaLink="false">psr-score-redline-bio-labs-2026-10-29-14</guid>
      <pubDate>Thu, 29 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 29, 2026. Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 3.2 to 3.3.</description>
    </item>
    <item>
      <title>FRO Peptides: 6.66 to 6.61 (-0.05)</title>
      <link>https://peptidesourcereview.info/vendor/fro-peptides/history#fro-peptides-2026-10-27-6</link>
      <guid isPermaLink="false">psr-score-fro-peptides-2026-10-27-6</guid>
      <pubDate>Tue, 27 Oct 2026 20:00:00 GMT</pubDate>
      <category>Score change</category>
      <description>October 27, 2026. Market medians updated after S1Research was added pricing 7.8 to 7.5.</description>
    </item>
    <item>
      <title>NovaForge Labs: first published at 6.89/10</title>
      <link>https://peptidesourcereview.info/vendor/novaforge-labs/history#novaforge-labs-2026-10-27-0</link>
      <guid isPermaLink="false">psr-score-novaforge-labs-2026-10-27-0</guid>
      <pubDate>Tue, 27 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 27, 2026. lab 7.7 / shipping 5.0 / pricing 8.7 / tenure 0.9 / transparency 6.0. First audit after the vendor&apos;s submission. 13 of 14 catalogue products have a certificate, and every scored certificate was found at the issuing laboratory (Freedom Diagnostics Testing, ILS Laboratories). Vendor lot labels repeat across compounds (rule A7 LOT, -0.2), and the site&apos;s fentanyl-screen statement is not borne out by the Freedom certificates (rule A7 CLAIM, -0.1).</description>
    </item>
    <item>
      <title>Peptide Pro: first published at 5.70/10</title>
      <link>https://peptidesourcereview.info/vendor/peptide-pro/history#peptide-pro-2026-10-27-0</link>
      <guid isPermaLink="false">psr-score-peptide-pro-2026-10-27-0</guid>
      <pubDate>Tue, 27 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 27, 2026. lab 6.1 / shipping 5.5 / pricing 5.6 / tenure 3.1 / transparency 5.0. First audit after the vendor&apos;s submission, read through a signed-in account (rule F3). 42 of 43 catalogue products have a certificate and every scored certificate was found at the issuing laboratory (Bioviridian, Freedom Diagnostics Testing, Horizon Analytical). Nine posted copies differ from the laboratory&apos;s copy in their dates (rule A4, scored 0); a lot label repeats across compounds (A7 LOT, -0.2); ten Horizon reports repeat analyses first issued to another business (A7 SUPPLIER, -0.2); the home page purity statement is not borne out by two posted reports (A7 CLAIM, -0.1).</description>
    </item>
    <item>
      <title>S1Research: first published at 7.70/10</title>
      <link>https://peptidesourcereview.info/vendor/s1research/history#s1research-2026-10-27-0</link>
      <guid isPermaLink="false">psr-score-s1research-2026-10-27-0</guid>
      <pubDate>Tue, 27 Oct 2026 20:00:00 GMT</pubDate>
      <category>New vendor audit</category>
      <description>October 27, 2026. lab 8.6 / shipping 6.0 / pricing 9.5 / tenure 1.8 / transparency 5.0. First audit after the vendor&apos;s contact. 29 of 30 catalogue products have a certificate, and every scored certificate was found at the issuing laboratory (Freedom Diagnostics Testing, ILS Laboratories). Two product pages state a higher purity than their certificates (rule A7 CLAIM, -0.2).</description>
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