CURATED VENDOR PROFILE
The Peptides Collective
A USA-based storefront (TPC Research LLC) with public product pricing and a browsable Lab Reports archive of third-party Janoshik Analytical and Chromate Certificate-of-Analysis PDFs.
Same formula for every vendor: verifiable testing evidence forms the backbone; third-party reviews adjust it within a bounded range. How scoring works →
Score breakdown
Rank Composition — the terms below are the published receipt for this score. Full formula on the methodology page.
- Verified-evidence backbone
- 7.84
- Third-party reviews (bounded)
- +0.00
- Curated review bonus
- +0.15
The Peptides Collective publishes an openly priced research-peptide catalog and a public Lab Reports grid of batch cards with downloadable COA PDFs. Branded GLP aliases (GLP-3/R, GLP-1/S, GLP-2/T) map to retatrutide, semaglutide, and tirzepatide for $/mg comparison; named blends such as KLOW, GLOW, Selank+Semax, and Ipamorelin+Tesamorelin use their labeled vial totals. Most certificates are Janoshik Analytical TEST REPORTs; a Chromate subset prints job and access codes for independent portal checks when the provider resolves.
Readers who want a compact, openly priced RUO catalog paired with a public Lab Reports archive of third-party Janoshik and Chromate certificates.
GLP-3/R, GLP-1/S, and GLP-2/T are branded aliases mapped to retatrutide, semaglutide, and tirzepatide; house blends map to labeled component totals. Sold-out SKUs (including LL-37 and GLP-1/S at onboarding) are withheld from the pricing board. Hospira BAC Water is a reconstitution supply sold by volume. No public street address is published — only a USA-based / TPC Research LLC claim plus a Wyoming-area phone number. WELCOME30 is a dated public coupon, not a PeptideBenchmark affiliate arrangement.
WELCOME30 for 30% off and free shipping above $250 were visible as public storefront promotions at onboarding — not PeptideBenchmark affiliate terms. Contact lists support@peptidescollective.com and 307-302-9227.
Checked August 1, 2026Public Janoshik + Chromate COA archive with provider verification
The public /lab-report/ page lists batch cards with purity, lot, date, and View COA PDF links under wp-content/uploads. Credentials are read from each PDF and confirmed at Janoshik or Chromate when the portal accepts the pair; documents that name a lab but do not currently resolve stay as named-lab, vendor-hosted evidence rather than provider-verified.
15 public certificate examples
Representative product pages showing how this catalog exposes report or verification paths. Examples, not proof for every current lot.
Assayed content is not fill accuracy. Laboratories report net peptide content, and peptides ship as salts, so an honestly filled vial commonly assays below its gross label — a figure under 100% is not evidence of a short vial. These numbers are also not comparable between vendors: they exist only where a laboratory reports net content, so they partly reflect which laboratory a vendor uses.
Holding a certificate for this vendor that is not here? Send it to the archive →
Observed from public domain records and the vendor's own site on Aug 27, 2026. Identity facts are shown for context and do not affect scores.