Vendor reviews
Independent peptide vendor reviews
Every vendor here is scored on the same five-part rubric. No sponsored placements, no pay-to-rank. Our one disclosed commercial relationship — Axiom Labz — is graded on the identical scale as everyone else.
Axiom Labz
Third-party COA on every batch, US-based fulfillment.
Limitless Life Nootropics
Documentation-forward, premium pricing.
Amino Asylum
Broad catalog, aggressive pricing, uneven documentation.
Peptide Pros
US vendor, straightforward catalog, verify documentation.
Swiss Chems
Established name, tablet/capsule formats, mixed reviews.
Behemoth Labz
Wide catalog including blends, verify per lot.
Core Peptides
Clean storefront, US shipping, thin documentation.
Pure Rawz
Broad research-chemical catalog, uneven quality signals.
How we score
Each vendor gets a 0–5 rating in five dimensions, and the composite is their mean. The rubric is deliberately weighted toward the things that are hard to fake and expensive to do right.
- Analytical purity
- What HPLC and mass-spec results actually show, batch over batch — not the number on the storefront.
- COA transparency
- Whether a third-party certificate exists and reconciles to the specific lot you receive.
- Shipping & packaging
- Speed, discretion, cold-chain where needed, and reship policy on seizures or breakage.
- Support & disputes
- Responsiveness and how they handle a bad batch or a lost package.
- Value for purity
- Price measured against verified quality — cheap junk scores worse than fair-priced clean material.
Why not just Google it?
- Rankings sold to the highest bidder
- No lab data behind the star ratings
- "Reviews" written to close a sale
- Vendors rotate as commissions change
- One disclosed partner, scored on the same rubric
- COA verification is a scored dimension
- Editorial assessment, disclosed as opinion
- Active safety alerts tracked per vendor
Each vendor page carries community reviews — first-hand purchase stories you can open, read in full, and comment on. Reports labeled “from public discussion” are aggregated from public forum sentiment; you can also submit your own verified experience, which we moderate before it publishes.