Full access is free for 10 days — all peptide deep-dives, research, and dosing protocols are open to everyone.

Vendor directory

PeptideSciences101 does not sell peptides and does not endorse any vendor. This directory documents publicly available transparency metrics for informational purposes only.

We track verification status, community trust scores, and third-party testing claims. Listings labelled verified have published certificates of analysis on request; listings marked pending are awaiting review. Verification is not an endorsement.

NewU Research Labs

verified

Research-grade peptide supplier with third-party Certificates of Analysis on file. Testing conducted by AxisPharm LLC (LCMS + LAL endotoxin) and Horizon Analytical (UPLC/MS).

Trust score
4.95 / 5
Reviews
1
Avg rating
4.95 / 5

Notes on purchasing

  • Research use only. Most peptides on this site are not approved for human use. Buying them does not change their regulatory status.
  • Always demand a certificate of analysis (CoA) from an independent lab. Purity should be >95% for research-grade material.
  • Verify supplier. Counterfeit peptides are common. Cross-reference batches, lot numbers, and lab signatures.