Peakformpeptides

Peakformpeptides is a US-based vendor shipping from Scottsdale, Arizona to domestic customers, offering both retail and bulk peptide sales. The catalogue includes 33 peptides with prices listed for each, and the vendor hosts COAs for 8 of them showing purity of 99.35%. The testing is vendor-hosted rather than verified by an independent third-party lab like Janoshik. Community reports on product quality, service, and shipping are not yet available on this site, so perspective on the buyer experience is limited to what the vendor itself publishes.

Some links are affiliate links. This never affects our rankings or inclusion.

Data last updated

Anecdotal signals

Peakformpeptides lab testing & COAs

Testing coverage

Coverage
8 / 33
products carry a certificate (24%)
Test panel — products documenting each test
0 with the full safety panel
Identity / purity8/33
Fill weight / content6/33
Sterility0/33
Endotoxin0/33
Heavy metals0/33
5 Amino 1MQ
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
AOD-9604
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
BPC-157
Latest Apr 30, 2026
Identity ✓Purity ✓Weight ✓ 4.93 mgEndotoxin —Sterility —Metals —Independent lab —
Cagrilintide
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
CJC-1295
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
DSIP
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
1–6 of 33

Common questions

Is Peakformpeptides legit?

We don't issue verdicts — we publish the evidence and let it speak. We hold 8 captured lab documents (COAs) for this vendor. Our automated site audit has verified the vendor's published catalogue and COA surface. The sections on this page hold the evidence behind each of those numbers.

Does Peakformpeptides publish third-party lab tests (COAs)?

8 of 33 observed peptides have a COA mapped to them. Latest captured reports are from Horizon Analytical.