Skyscanner
for the peptide market.

We're a team of independent researchers working to make the peptide market free of scams and fake products. We test the most popular suppliers ourselves and publish what we find.

Total listings tracked
482
Per independent HPLC purity test
$300

Janoshik Analytical, common GLP-1 HPLC blind test

Testing progress

$0 spent of $144,600 needed

If a supplier isn't verified yet, we just haven't tested them.

“Not verified” doesn't mean a supplier is fake — it means they're on our list to test next. Until then, we strongly recommend buying only from suppliers we've independently confirmed.

Independent third-party testing

We send unannounced batches to accredited labs and publish purity, peptide content, and contamination results with the test date and lab name.

Community reviews

Researchers can leave reviews on each supplier and product after a one-time email confirmation. No accounts to manage — submit a rating, confirm via email, and the review goes live.

Counterfeit & scam warnings

Listings with prices that look too good, missing batch numbers, or known re-shippers are flagged before you click through to the supplier.

Peptide Scanner is an independent non-profit aggregator. All content is for research purposes only. We do not sell, ship, or endorse any product. Read full disclaimer →