Peptides Source score history

Score over time

Every entry newest first

1. November 6, 2026Lowered from7.33→to7.17(-0.16)

   Lab score recomputed under the published rule on 6 November 2026: lab 7.9 to 7.6.

2. November 1, 2026Raised from7.32→to7.33(+0.01)

   Market medians updated after Stack Research was added pricing 8.2 to 8.3.

3. November 1, 2026Lowered from7.33→to7.32(-0.01)

   Market medians updated after Bluum Peptides was added pricing 8.3 to 8.2.

4. October 30, 2026Lowered from7.44→to7.33(-0.11)

   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.

5. October 27, 2026Raised from7.43→to7.44(+0.01)

   Pricing recomputed on 27 October 2026: listings added for a newly reviewed vendor (Peptide Pro) moved the market median for the same products pricing 8.2 to 8.3.

6. October 24, 2026Lowered from7.46→to7.43(-0.03)

   Pricing recomputed on 24 October 2026 after Bionova Peptides' first-review prices were recorded; other vendors move only through the market medians: pricing 8.4 to 8.2.

7. October 24, 2026Raised from7.44→to7.46(+0.02)

   Pricing recomputed on 24 October 2026: listings added for newly reviewed vendors moved the market median for the same products: pricing 8.3 to 8.4.

8. October 22, 2026Lowered from7.55→to7.44(-0.11)

   Certificates issued to other businesses (NxGen Bio Med, P4R Wholesale, SW Peptides) appear on some product pages, confirmed live on 22 October 2026: a fixed supplier deduction under our published lab rule. Lab 8.3 to 8.1.

9. October 22, 2026Raised from7.53→to7.55(+0.02)

   Operating history re-checked on 22 October 2026 under the published rule (earliest dated evidence of the business, including a never-parked store domain and the named operating company, looked up for every vendor): operating history 3.4 to 3.8.

10. October 22, 2026Raised from7.48→to7.53(+0.05)

    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 8.2 to 8.3.

11. October 22, 2026Raised from7.43→to7.48(+0.05)

    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: transparency 2.0 to 3.0.

12. October 22, 2026Raised from7.26→to7.43(+0.17)

    Re-scored on 22 October 2026 under version 2 of our published rules. The deduction for verification codes the laboratory could not find was retired: each such certificate now keeps its points for the printed key and earns none for confirmation, and codes on certificates we do not score no longer count. Lab 7.9 to 8.2. Score 7.26 to 7.43.

13. October 22, 2026Lowered from7.69→to7.26(-0.43)

    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 8.5 to 7.0, transparency 4.6 to 2.0.

14. October 22, 2026Lowered from7.80→to7.69(-0.11)

    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. pricing 9.0 to 8.3, operating history 3.6 to 3.4.

15. October 22, 2026Raised from7.75→to7.80(+0.05)

    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 verification codes the issuing laboratory could not find and site statements about testing that the certificates do not bear out. Lab 7.8 to 7.9.

16. October 21, 2026Raised from7.38→to7.75(+0.37)

    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 26 of the 26 products we list that the vendor offers for sale. Lab 7.1 to 7.8.

17. October 21, 2026Lowered from7.49→to7.38(-0.11)

    Tenure 5.9 to 3.6. The domain was registered in February 2024, about two and a half years ago, and no founding year is stated, so the operating-history score was aligned to the domain age. The public notes were also rewritten to match the July 2026 audit; the lab score is unchanged.