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:
17 of 23 listed products were in stock when we last read the catalogue.
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.