Nextday Peptides score history

Score over time

Every entry newest first

1. November 3, 2026Raised from3.20→to3.21(+0.01)

   Market medians updated on 3 November 2026 after the Prime Peptides re-check added priced listings: pricing 3.5 to 3.6.

2. October 29, 2026Raised from3.14→to3.20(+0.06)

   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.

3. October 25, 2026Lowered from3.16→to3.14(-0.02)

   Pricing recomputed on 25 October 2026: listings added for a newly reviewed vendor (Pexo Labs) moved the market median for the same products: pricing 3.6 to 3.5.

4. October 24, 2026Raised from3.13→to3.16(+0.03)

   Prices re-computed on 24 October 2026 after products were added for Spartan Peptides, Next Day Peptides and Honest Peptide, which moved the market medians: pricing 3.4 to 3.6.

5. October 24, 2026Raised from2.63→to3.13(+0.50)

   Three products added on 24 October 2026: MOTS-c, SS-31 and GLOW, sold on the vendor's site and covered by Freedom Diagnostics certificates confirmed at the laboratory. Their client field reads 'G', which the existing SUPPLIER adjustment already covers. Lab 2.0 to 2.9.

6. October 24, 2026Lowered from2.65→to2.63(-0.02)

   Pricing recomputed on 24 October 2026 after Bionova Peptides' first-review prices were recorded; other vendors move only through the market medians: pricing 3.5 to 3.4.

7. October 23, 2026Raised from2.63→to2.65(+0.02)

   Prices re-checked on 23 October 2026 under rule E (standing prices only): prices taken from a time-limited sale were replaced with the vendor's standing price, current prices were re-read, and other vendors' price changes moved the market medians pricing 3.4 to 3.5.

8. October 22, 2026Lowered from2.69→to2.63(-0.06)

   Laboratory grades re-checked on 22 October 2026 under the published laboratory rulebook (checks L1 to L6 on How We Rate). Harrens Lab's A2LA accreditation covers cannabis, hemp and food microbiology testing but not peptides, so its certificate no longer earns the accreditation point (check L6); it also offers no public way to look up a report (check L3), which grades it B-. This affects one Nextday Peptides certificate (BPC-157). Lab 2.1 to 2.0.

9. October 22, 2026Raised from2.36→to2.69(+0.33)

   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 1.5 to 2.1.

10. October 22, 2026Raised from2.30→to2.36(+0.06)

    Claim deductions re-checked on 22 October 2026 under the published rule that a claim deduction applies only where a site claim is contradicted by what its certificates show, never for products merely lacking a certificate. Lab 1.4 to 1.5.

11. October 22, 2026Lowered from2.50→to2.30(-0.20)

    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 4.5 to 3.5.

12. October 22, 2026Re-checked, no change (2.50)

    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: 3 of 24 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.

13. October 22, 2026Raised from2.45→to2.50(+0.05)

    MDx BioAnalytical Laboratory confirmed accredited in PJLA's register on 22 October 2026 (certificate L26-502, scope includes peptides and endotoxins), so its certificates now receive the accreditation credit under our published lab rule. Lab 1.3 to 1.4.

14. October 22, 2026Lowered from4.16→to2.45(-1.71)

    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 9.5 to 4.5, pricing 7.2 to 3.4, operating history 2.0 to 1.9, transparency 7.3 to 4.5.

15. October 22, 2026Lowered from4.27→to4.16(-0.11)

    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 ordered by a supplier or issued to another business and site statements about testing that the certificates do not bear out. Lab 1.5 to 1.3.

16. October 20, 2026Lowered from7.30→to4.27(-3.03)

    Lab evidence re-checked on 20 October 2026 under our coverage rule, which counts a listed product with no published certificate as zero in the lab average. Certificates cover 6 of the 24 products we list that the vendor offers for sale. Lab 7.0 to 1.5.

17. October 8, 2026Raised from7.28→to7.30(+0.02)

    Lab roster corrected to the five independent laboratories actually appearing (PharmLabs, the sixth name on the certificates, is excluded from the roster); TrustPointe Analytics is gone from the site and was removed. Harrens Lab added to the tier table at A after reading one of its certificates in full. Transparency raised because the vendor states plainly that the certificates are its suppliers' and that it does not test lots itself. Lab held at 7.0: six laboratories across 27 supplier certificates covering 10 of 24 products is breadth, not depth.

18. July 23, 2026Raised from7.23→to7.28(+0.05)

    Re-audited from live COAs. Read 25 Janoshik reports in the vendor's certificate library and credited current transparency. Noted two mislabeled COA links and that only 28 of 59 products publish a COA.