Penguin Peptides

Penguin Peptides is a US-based vendor selling both retail and bulk quantities, shipping domestically within the United States. Their catalogue covers a broad range of peptides, and third-party testing through Janoshik is part of their documentation — COA records are present on the site. On pricing, they sit in the middle of the US market, neither among the cheapest nor the most expensive options relative to comparable domestic vendors. Community feedback is not yet on record, so the buyer experience is an open question.

Anecdotal signals

Forum

Testing

BPC-157
5 mg
Latest Mar 05, 2026
Identity Purity Weight 5.63 mgEndotoxin Sterility Metals Independent lab
CJC-1295
5 mg
Latest Mar 05, 2026
Identity Purity Weight 5.88 mgEndotoxin Sterility Metals Independent lab
DSIP
5 mg
Latest Jan 22, 2026
Identity Purity Weight Endotoxin Sterility Metals Independent lab
Epithalon
10 mg
Latest Jan 22, 2026
Identity Purity Weight 9.46 mgEndotoxin Sterility Metals Independent lab
GHK-Cu
100 mg
Latest Jan 21, 2026
Identity Purity Weight Endotoxin Sterility Metals Independent lab
MOTS-C
10 mg
Latest Jan 21, 2026
Identity Purity Weight Endotoxin Sterility Metals Independent lab
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Price

regional price-per-mg comparisons

16 of 10

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