Peptide Pros Review
Scored 3.56/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 6
COAs on file
- Confirmed at the lab
- 0
Confirmed at the lab
- Products
- 18
Products
- Labs
- 1
Labs
3.56/ 10
- Lab credibility and recency55%1.3 (show how this was scored)
- Shipping and refund20%5.5 (show how this was scored)
- Pricing15%6.7 (show how this was scored)
- Operating history5%9.3 (show how this was scored)
- Business transparency5%5.5 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Testing gate applies (limit 7.50); this score is already below it
Third-party testing not established. The gate records that testing could not be verified; it is not a finding of a quality or safety problem.
Is Peptide Pros legit?
Peptide Pros scores 3.56 out of 10 (Poor, #86 of 100) as of October 27, 2026 and does not meet our testing gate: 6 of the 17 products we score carry a certificate from a lab we grade A, none confirmed with the issuing lab. Its strongest area is operating history (9.3/10), with over twelve years of records; its weakest is lab testing (1.3/10).
On lab evidence, the heaviest-weighted factor, Peptide Pros has no third-party testing we could independently verify, with COA work on record from MZ Biolabs. The testing gate applies because that testing could not be independently verified (Third-party testing not established); its limit for Peptide Pros is 7.50, and this score is already below it. Its lowest price per milligram in our data is on GHK-Cu (see the table below).
How this score was calculated
Every point below follows the published tables in our methodology, with the policy wording we scored and a link to where we read it. Evidence last checked October 22, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility1.3/10
Each carried product (lab supplies excluded) is scored from the certificate on file for it, on the published lab rubric: 3 for a published certificate, then points for the laboratory, the verification key, the tests on the certificate and its purity, held to 0 to 10. A certificate that is self-issued, names no laboratory, or comes from a laboratory whose independence is not established scores a flat 2.0; a product with no certificate, a certificate the laboratory’s own record fails, or a posted copy that differs materially from the laboratory’s copy scores 0. Calculated on , the day this page was built; the date each certificate was tested is shown on its row.
- BPC-1575.5
Certificate from MZ Biolabs, tier A · tested 2022-05-02
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- +0.5Purity 100% (99.7% or higher)
- −0.098Age: more than 12 months old, so 0.25 × 5.5 ÷ the weighted product count comes off the mean (AGE below)
- TB-5000.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- GHK-Cu0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- CJC-12950.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Ipamorelin5.0
Certificate from MZ Biolabs, tier A · tested 2022-10-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- 0.0Purity 99% (99.0% up to but not including 99.7%)
- −0.089Age: more than 12 months old, so 0.25 × 5.0 ÷ the weighted product count comes off the mean (AGE below)
- Semax0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- Melanotan-25.0
Certificate from MZ Biolabs, tier A · tested 2021-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- 0.0Purity 99% (99.0% up to but not including 99.7%)
- −0.089Age: more than 12 months old, so 0.25 × 5.0 ÷ the weighted product count comes off the mean (AGE below)
- Sermorelin5.5
Certificate from MZ Biolabs, tier A · tested 2022-05-02
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- +0.5Purity 100% (99.7% or higher)
- −0.098Age: more than 12 months old, so 0.25 × 5.5 ÷ the weighted product count comes off the mean (AGE below)
- Tesamorelin0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- PT-1410.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- AOD-96040.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- IGF-1 LR35.5
Certificate from MZ Biolabs, tier A · tested 2022-10-19
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- +0.5Purity 99.7% (99.7% or higher)
- −0.098Age: more than 12 months old, so 0.25 × 5.5 ÷ the weighted product count comes off the mean (AGE below)
- GHRP-20.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- GHRP-60.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Hexarelin0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Certificate from MZ Biolabs, tier A · tested 2022-05-28
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier A (MZ Biolabs)
- 0.0Purity 99.1% (99.0% up to but not including 99.7%)
- −0.089Age: more than 12 months old, so 0.25 × 5.0 ÷ the weighted product count comes off the mean (AGE below)
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Weighted mean of 17 products (6 non-core products without a certificate counted at half weight): 31.5 ÷ 14.0 = 2.250.
- −0.563AGE Certificates older than 12 months: 6 scored certificate(s) older than 12 months: bpc-157 2022-05-02, ipamorelin 2022-10-19, mt-2 2021-07-01, sermorelin 2022-05-02, igf-1-lr3 2022-10-19, bpc-157-tb-500 2022-05-28
- −0.10CLAIM Claims the certificates do not support (cap −0.3): '99% or greater purity for all peptides, HPLC tested prior to delivery' vs the vendor's own 80-96% reports
- −0.20LOT Lot numbers that do not identify a single batch (cap −0.2): lot AF78890211 on both the PT-141 and Ipamorelin reports
2.250 − 0.863 = 1.388, rounded to 0.1: 1.4/10.
Testing gate: 0 of 17 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is fewer than half, so the testing cap applies (see the methodology).
The published lab sub-score is 1.3/10, which differs from this rule result by 0.1. It changes at the next audit.
Shipping and refunds5.5/10
- +1
Returns and refunds
"All sales are final"; FAQ: "We will however replace any product if it does not meet at least 99% Purity."
- +1
Lost or damaged parcels
"If for any reason your package doesn't reach the address you provided at checkout, we will reship your order at no cost to you."
- +1.5
Dispatch time
"If your order is placed before noon (EST) your package will usually ship that same day"; FAQ "We process all orders within 24 hours"
- +1
Tracking on all orders
FAQ: emails "when your order is complete and with your tracking info"
- 0
Payment you can dispute
"1) E-check ... 2) Bitcoin ... 3) Check or Money Order by mail"; Store API gateways greenmoney, blockonomics, bacs, cheque
- +1
Shipping rates published
"We offer FREE shipping on orders over [price] if within the U.S.A."
Total +5.5: 5.5/10.
Pricing6.7/10
We compared Peptide Pros’s current single-vial prices on 17 products, each matched to the same product and milligrams per vial, with the median price of the other vendors. Its typical price (the median ratio across those products) is 4% above the market median (ratio 1.04), which the published scale maps to 6.7/10. checked
Operating history9.3/10
Counted from November 20, 2013, the earliest dated evidence of this business operating: 12.9 years as of October 22, 2026, which the published table maps to 9.3/10.
Start is the formation of the named operating company Peptide Pros, LLC: Florida L13000162915, filed 2013-11-20 in Miami Beach (the site's city); it was administratively dissolved in 2018 but the site still names it. Domain peptidepros.net registered 2014-02-19 (never parked); first store capture 2014-03-06.
- 2013-11-20 State registry: Florida Sunbiz PEPTIDE PROS, LLC L13000162915, filed 2013-11-20, 1602 Alton Rd #371 Miami Beach; admin dissolution 2018-09-28 search.sunbiz.org (opens in new tab)
- 2014-02-19 Domain registration: registration of the store domain rdap.verisign.com (opens in new tab)
- 2014-03-06 Archived copy: CDX: blank 2013-07 captures predate the registration; store from 2014-03-06 web.archive.org (opens in new tab)
- 2014-03-06 Archived copy: store with prices web.archive.org (opens in new tab)
- 2014-07-30 Dated public mention: comment: Peptide Pros sermorelin, IGF-1, http://www.peptidepros.net (promotional) reddit.com (opens in new tab)
Transparency5.5/10
- +2
- +1
Business address
Peptide Pros, 901 Pennsylvania Avenue STE 3-371, Miami Beach, FL 33139
Address checked: mailbox or PMB.
- +1
- 0
Named owner or staff
none named
checked
- 0
Dated terms with a governing law
"the statutes and laws of our state" (state not named); no date
- +1.5
Testing lab named, certificates published
MZ Biolabs certificates on /coa-reports/ (2021 to 2023)
Total +5.5: 5.5/10.
Shop Peptide Pros
- Rated 3.56/10 · Poor
- Best value: GHK-Cu at $0.99/mg
Audit history and why the rating changed
We re-audit vendors against their live COAs and site. Here is what most recently moved this rating, and why.
See the full score history and chart
- Most recent audit · 3.55to3.56
Pricing recomputed on 27 October 2026: listings added for a newly reviewed vendor (Peptide Pro) moved the market median for the same products pricing 6.6 to 6.7.
- Audit · 3.56to3.55
Pricing recomputed on 26 October 2026: a vendor was removed from the directory, which moved the market median for the same products: pricing 6.7 to 6.6.
- Audit · 3.58to3.56
Pricing recomputed on 23 October 2026 from current listings with the published rule (section E), after listings added or updated since 22 October, including a newly reviewed vendor's, moved the market median for the same products: pricing 6.8 to 6.7.
Earlier audits (7)
- Audit · 3.47to3.58
Lab score recalculated on 22 October 2026 under the published core-product rule (A1b): a missing certificate on one of the 15 most widely carried products still counts fully, while on any other product it now counts at half weight, so a broad catalogue is not penalised as much for its breadth. Lab 1.1 to 1.3. Note added 22 October 2026: a score on this entry was corrected from 3.57 to 3.58; it had been rounded down instead of half up.
- Audit · 3.67to3.47
Re-scored on 22 October 2026 under the published rulebook, which now gives one rule for each judgement call and applies it to every vendor: shipping and refunds 6.5 to 5.5.
- Audit · Verified, no change
Re-scored on 22 October 2026 under version 2 of our published rules. No score change. The testing gate is now computed from the certificates instead of set by hand: 0 of 17 products have a certificate from a directory laboratory with the key confirmed at the laboratory, fewer than the half required, so the testing cap applies; the cap sits above the weighted score, so it does not lower it.
- Audit · 3.56to3.67
Re-scored on 22 October 2026 under our published rubric for shipping, pricing, operating history and transparency, applied to every vendor the same day: prices re-read from the vendor's site and matched by milligrams per vial, operating history from the earliest dated evidence of the business, and policies scored item by item. shipping and refunds 5.5 to 6.5, pricing 7.7 to 6.8, operating history 9.0 to 9.3, transparency 5.0 to 5.5.
- Audit · 3.40to3.56
Lab score recalculated on 22 October 2026 under the uniform published rubric applied to every vendor: every listed product was rescored on the same fixed certificate points, with fixed deductions for certificates more than 12 months old, site statements about testing that the certificates do not bear out and one lot number printed on certificates for different compounds. Lab 0.8 to 1.1.
- Audit · 3.78to3.40
Lab evidence re-checked on 22 October 2026 under our coverage rule. The certificates linked on the site carry no verification key and are four to five years old, and most listed products show none, so lab moves from 1.5 to 0.8.
- Audit · 6.54to3.78
Re-audited 2026-10-18; the May 2026 score was a seed estimate. Lab falls from 4.89 to 1.5: every published certificate is a MZ Biolabs report dated 2021 to 2023 with no verification route, about six of 27 carried peptides have one, and the claim of HPLC testing on every batch is not supported. Shipping falls from 8.5 to 5.5: free reshipment of lost parcels is confirmed, but all sales are final and there is no card payment. Pricing moves from 9.5 to 7.7: list prices are about a third above the market median, while the standing site-wide reduction brings them about 5% below it; the score is reduced slightly because every product is shown as permanently marked down from a struck-through price. Tenure moves from 10 to 9.0 on a domain registered in February 2014. Transparency moves from 4.6 to 5.0: the operating LLC, a phone line and a Miami Beach suite address are published.
Editor’s notes
Peptide Pros has sold research peptides online since at least 2014, and its testing record has not kept pace. The certificates it publishes all come from MZ Biolabs, an independent Arizona laboratory, and name Peptide Pros as the client, but the newest peptide report still sold is from October 2022 and the oldest from 2021. They cover identity and purity only, by mass spectrometry and UV, and carry no verification code, so none could be checked with the laboratory. Only six of the 17 peptides we list have a certificate, one of them no longer linked, and product pages link to a general reports page rather than a batch report. The site says every peptide is HPLC tested before delivery with a purity of 99% or better guaranteed, which the published evidence does not show. Listed prices run above the market on most products, while a standing site-wide reduction brings them close to it. Orders ship from Colorado, usually within a day or two, and a parcel that never arrives is reshipped free, but all sales are final. Payment is by e-check, Bitcoin or mailed check only, with no card option. The operator, Peptide Pros, LLC, lists a Miami Beach suite address.
Peptide Pros COAs and lab test results
One row per product: the certificate on file and how the lab rule reads it, the laboratory that issued it and its tier, the date it was tested, the purity it reports, and the lowest price per milligram we recorded (per IU or mL where a product is sold that way).
- Purity
- —
- Price per mg
- $18.63$37.25 / 2mg
- Purity
- —
- Price per mg
- $0.99$49.50 / 50mg
- Purity
- —
- Price per mg
- $16.13$32.25 / 2mg
- Purity
- —
- Price per mg
- $1.94$58.25 / 30mg
MZ BiolabsTier Atested
- Purity
- 99%
- Price per mg
- $3.70$36.95 / 10mg
MZ BiolabsTier Atested
- Purity
- 100%
- Price per mg
- $11.99$23.99 / 2mg
- Purity
- —
- Price per mg
- $9.97$49.85 / 5mg
- Purity
- —
- Price per mg
- $3.75$37.50 / 10mg
- Purity
- —
- Price per mg
- $10.50$52.50 / 5mg
MZ BiolabsTier Atested
- Purity
- 99.7%
- Price per mg
- $89.99$89.99 / 1mg
- Purity
- —
- Price per mg
- $4.80$23.99 / 5mg
- Purity
- —
- Price per mg
- $4.80$23.99 / 5mg
- Purity
- —
- Price per mg
- $11.99$23.99 / 2mg
- Purity
- —
- Price per mL
- $0.83$24.99 / 30 mL
MZ BiolabsTier Atested
- Purity
- 99.1%
- Price per mg
- $11.50$45.99 / 4mg
- Purity
- —
- Price per mg
- $10.81$43.25 / 4mg
Learn more about what Peptide Pros carries
Rated higher than Peptide Pros, with a reader code
Peptide Pros is not one of our affiliate partners, so we have no code for it. These partners score above it under the same published rules, pass our testing gate, and give readers a discount.
Affiliate links: we may earn a commission if you buy. It never changes a score or rank.
7.71/10 · Strong · carries 13 of the same products
6.08/10 · Fair · carries 14 of the same products
5.95/10 · Fair · carries 16 of the same products
Peptide Pros: Frequently Asked Questions
Is Peptide Pros legit?
Peptide Pros scores 3.56 out of 10 (Poor, #86 of 100) as of October 27, 2026 and does not meet our testing gate: 6 of the 17 products we score carry a certificate from a lab we grade A, none confirmed with the issuing lab. Its strongest area is operating history (9.3/10), with over twelve years of records; its weakest is lab testing (1.3/10).
Is there a Peptide Pros promo code, coupon code, or discount code?
We do not have a verified Peptide Pros promo code or coupon code right now. When Peptide Pros runs a sale or issues a discount code, we post it here and on our promos page, so bookmark this page for the latest Peptide Pros discount.
Does Peptide Pros use third-party lab testing?
Not to our verification standard. Fewer than half of this vendor's scored products have a certificate from an independent laboratory in our directory (not tier D) whose verification key we confirmed at that laboratory, so the testing gate applies. This records what we could verify; it is not a finding of a quality or safety problem. Laboratories on the certificates we hold: MZ Biolabs.
Where can I see Peptide Pros' COAs?
In the "Peptide Pros COAs and lab test results" table on this page. We hold 6 certificates for Peptide Pros, covering 6 of the 18 products we track, issued by MZ Biolabs. None of them has yet been confirmed at the issuing laboratory. Each row links the certificate, its lab, its test date and the purity it reports.
What peptides does Peptide Pros carry?
Peptide Pros carries BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, Semax, Melanotan-2, Sermorelin, and 10 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the Peptide Pros review on Peptide Source Review affected by affiliate status?
No. All affiliate relationships are publicly disclosed and never change a vendor's score, rank, or gate status. Our scoring formula is published in full and applied identically to every vendor.
Want to understand how this score was built?
Read the full methodology or the editorial integrity policy.
Peptide Pros3.56Poor