Peptide Sciences

COA status: No COAs published

Certificate of Analysis (COA)

The vendor publishes no certificates of analysis.

Testing lab(s): Not established
Source confirmed by us: Yes — observed this cycle
Last reviewed: 2026-06-28

No longer operating — do not purchase. Included for the historical record. Independent testing failures preceded the shutdown.

Buyer Caution

Independent Finnrick testing gave its Retatrutide a failing "E" rating across 37 samples (Nov 2025), with counterfeit flags.

Regulatory Record

Voluntarily shut down March 6, 2026 amid the FDA enforcement wave. Was the largest US gray-market research-peptide vendor (~$7.4M/mo online sales, Dec 2025).

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PepScore

Under review

Vendor grade pending

No COAs

No longer operating

COA status and grade are independent of any affiliate relationship.

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Educational only — not medical advice. Research use only. Consult a licensed healthcare provider before using any compound.