Great Lakes Peptides sells direct to researchers. It lists 23 products, including BPC-157 + TB-500, Sermorelin, 5-Amino-1MQ, BPC-157, GHK-Cu, and Tesofensine, plus 7 other compounds.
In its own words: “We Now Have Square Invoicing For Payments. Shipping On Orders Above $199 is Free...No Discount Codes Needed!!”
Of the 12 product pages we opened, every one links its own certificate.
Prices run from $18.00 to $110.00 across 23 listed products. Payment is by credit card. Orders ship with USPS.
Site check: 23 products listed; payment by credit card; ships via USPS.
Great Lakes Peptides is listed as active. Tracked by Finnrick. No test data available yet.
Community standing: 3.7/5 on Trustpilot from 1 reviews. Ratings of anonymous sellers of unregulated products are the weakest signal on this page; the assay and grading records carry more.
| Status | Active |
|---|---|
| Trustpilot | 3.7/5 from 1 reviews |
| Vendor type | Research-use supplier |
These details were read from Great Lakes Peptides's own website on 2026-08-10. Pages consulted:
We hold no independent testing, published certificates, or ratings for Great Lakes Peptides, so we cannot tell you whether it is legitimate. That is an absence of evidence, not evidence of a scam — it means nobody has tested it.
We hold no independent third-party assays for Great Lakes Peptides. Any purity figure it publishes is self-reported unless it names the lab that produced it.
Great Lakes Peptides accepts Credit Card.
Great Lakes Peptides uses USPS.
Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
Other reviewed vendors: Great Life Peptides Review, Great Northern Peptides Review, Grewo Peptide Review.