Nextday Peptides

Nextday Peptides is a site-verified vendor serving both retail and bulk customers, with a catalogue of 44 peptides and pricing listed for nearly all of them. The vendor hosts 17 COAs showing 99% purity, though coverage is limited—the reports cover just 3 of the 44 peptides. Community data is still thin, with no buyer experience mentions captured yet.

Website

Data last updated

Anecdotal signals

Nextday Peptides lab testing & COAs

Testing coverage

Coverage
22 / 37
products carry a certificate (59%)
Test panel — products documenting each test
0 with the full safety panel
Identity / purity19/37
Fill weight / content22/37
Sterility0/37
Endotoxin0/37
Heavy metals0/37
5 Amino 1MQ
10 mg
Latest —
Identity —Purity ✓Weight ✓ 10.00 mgEndotoxin —Sterility —Metals —Independent lab —
AOD-9604
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
ARA 290
Latest —
—
Identity —Purity —Weight —Endotoxin —Sterility —Metals —Independent lab —
BPC-157
5 mg
Latest Sep 22, 2025stale
Identity —Purity ✓Weight ✓ 6.77 mgEndotoxin —Sterility —Metals —Independent lab ✓
Cagrilintide
10 mg
Latest Dec 08, 2025
Identity —Purity ✓Weight ✓ 12.16 mgEndotoxin —Sterility —Metals —Independent lab ✓
CJC-1295
10 mg
Latest Jul 20, 2024stale
Identity —Purity —Weight ✓Endotoxin —Sterility —Metals —Independent lab ✓
1–6 of 37

Common questions

Is Nextday Peptides legit?

We don't issue verdicts — we publish the evidence and let it speak. We hold 146 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 Nextday Peptides publish third-party lab tests (COAs)?

23 of 37 observed peptides have a COA mapped to them. Latest captured reports are from Janoshik.