PeptidePrices Independent Dossier
Synthesis Peptides
Compiled September 18, 2026 · Source: peptideprices.net/vendors/synthesis-peptides
Executive Summary
Certificate of Analysis (COA) Practices
Status: COA ✓ (third-party lab tested)
COA URL: /coa-library?vendor=Synthesis%20Peptides
Notes: Reviewed September 17, 2026. PeptidePrices publishes 102 Synthesis Peptides documents with exact issuer records: 77 Freedom Diagnostics files, 17 Kovera documents, 6 ILS Laboratories certificates, and 2 Vanguard reports. Five older Freedom files that returned no official record are retained in the internal audit and removed from public surfaces. Eighty-five current product-and-strength rows receive exact controls. The two Vanguard L-carnitine records remain archive-only because Vanguard's official catalog attributes their report IDs to Orbitrex Peptides even though the vendor-hosted copies name Synthesis Peptides. Cartalax, Cortagen, tablets, accessories, L-carnitine, and unmatched strengths stay blank.
Rating Methodology
PeptidePrices rates vendors on a 1–10 scale using a transparent, weighted rubric:
- 40% COA practices — named third-party lab, batch-to-vial linkage, public on-site publication, testing breadth (HPLC purity, mass-spec identity, endotoxin, sterility, heavy metals)
- 20% Community reputation — Trustpilot weighted by review volume, Reddit/forum sentiment, documented red flags
- 20% Transparency — physical address, company age, ownership disclosure, contact info, domain age, return policy
- 20% Operations — shipping speed, customer-service responsiveness, payment flexibility, and dispute handling; affiliate-program performance is not scored
PeptidePrices is independent. No vendor has paid to increase their score. Full methodology at peptideprices.net/trust.