Find trusted peptide suppliers. Ranked by real, verified reviews.

PeptidesLookup.com is an independent, community-driven review platform built only for the peptide industry. We bring peptide suppliers together in one directory and rank them by real, verified buyer reviews, so researchers can compare vendors honestly and choose a trusted source with confidence — whether they are looking for BPC-157, TB-500, GHK-Cu, Semaglutide, Tirzepatide or any other research peptide.

Suppliers are ranked best-first by their verified review score — never by advertising or who pays the most. Companies with consistently strong, genuine reviews rise to the top, while those with poor or unresolved feedback fall lower. We do not sell ranking positions, so the order you see reflects real buyer experience.

Yes. To leave a review you must verify your identity through Google or a one-time email code. This keeps ratings genuine and makes it far harder for a vendor to post fake five-star reviews about itself or negative reviews about competitors. Each supplier can also respond publicly to reviews, and report ones they believe are fake or unfair for our team to investigate.

Always ask for a batch-specific Certificate of Analysis (COA) covering purity by HPLC and identity by mass spectrometry, and favour suppliers that use independent, third-party testing. Check their stated purity, shipping regions, accepted payment methods and refund policy. On PeptidesLookup you can see all of this on each supplier profile, alongside the full history of verified buyer feedback, before you place an order.

The peptide market is full of vendors but offers very few independent places to compare them honestly. Quality, purity, shipping speed and customer service vary widely between sources. Comparing suppliers side by side — and reading what real buyers experienced — helps you avoid scams and low-purity products and find a source that consistently delivers.

Yes — claiming and managing a profile is completely free. Suppliers can add their company description, products, certificates of analysis (COAs), shipping regions and payment methods, respond to reviews, publish news, and add a free review badge to their own website that links back to their PeptidesLookup profile.

Research peptides are regulated differently depending on where you live, and many are sold strictly for laboratory and research use only. PeptidesLookup provides educational information and independent reviews — it is not medical advice, makes no health claims, and you are responsible for complying with the laws in your own country.