Peptide Sciences Status
James MitchellMSc Biochemistry Methodology score
42
Provisional score last reviewed 2026-05-28. Scores are reviewed quarterly and are not influenced by commission rates.
Independent testing
14/30
COA accessibility
7/15
Manufacturing transparency
8/15
Support responsiveness
2/10
Shipping transparency
0/10
Years and community signal
9/10
Pricing transparency
2/10
Verification status
Peptide Sciences is kept as a legacy reference because it was historically one of the most visible research peptide suppliers. It should not be treated as an active retail vendor profile.
Overview
Peptide Sciences’ current official notice says the company has discontinued public retail storefront operations and no longer functions as an open-access online research-product retailer. The current PeptideUnicorn score reflects legacy awareness, not active sourcing availability.
Current source posture
- Public retail sales should be considered inactive.
- Any site claiming to be an unauthorized replacement or successor requires extra scrutiny.
- Historical testing, catalog, pricing, and shipping claims should not be reused as current claims unless directly reverified from official sources.
What we review
- Whether the official brand has active public retail operations
- Whether a current website is an authorized platform or an unrelated imitation
- Whether historic COAs and catalog references remain accessible for verification
- Whether any future restart changes the legal and quality posture
Summary
This page is a status note, not a recommendation. PeptideUnicorn should not rank Peptide Sciences as an active research vendor unless public retail operations resume and the profile is reverified.