Vendor Directory
A reference guide to vendors active in the research peptide market. For actual price-per-mg comparisons, use the free PPL tool.
How listing works
Inclusion in this directory is informational only and does not constitute an endorsement. No vendor pays to be listed, and there are no sponsored placements. Where we hold an affiliate code with a vendor, we surface it only when it actually beats whatever sale that vendor is running that week — and using it never costs you more. The small commission those codes earn is what keeps the Lab free and ad-free. Vendor policies, pricing, availability, and promo codes change frequently; always verify directly before purchasing.
Peptide Sciences
US-based vendor widely cited in the research community for third-party COA documentation. Carries a broad catalog of research peptides including GLP-1 compounds, GHRPs, and skin peptides. Ships domestically within the US.
Visit Peptide Sciences ↗
Core Peptides
US-based vendor with a large catalog and competitive per-mg pricing across commonly researched peptides. Known for accessibility and a range of vial sizes. Ships within the US.
Visit Core Peptides ↗
Swiss Chems
International vendor with broad catalog coverage including peptides, SARMs, and nootropics. Known for accepting multiple payment methods and shipping internationally. Country of origin and testing documentation varies by product.
Visit Swiss Chems ↗
Biotech Peptides
US-based vendor offering research peptides and related compounds. Carries popular items including BPC-157, TB-500, GHK-Cu, and GLP-1 analogs. Ships domestically.
Visit Biotech Peptides ↗
Limitless Life Nootropics
US-based vendor operating in the research peptide and nootropic space. Carries a range of commonly studied peptides including cognitive and GH-related compounds. Ships within the US.
Visit Limitless Life Nootropics ↗
Loti Labs
US domestic vendor known for competitive per-mg pricing. Carries a focused catalog of the most widely researched peptides. HPLC purity documentation is available for listed products.
Visit Loti Labs ↗
Amino Asylum
US-based vendor with a wide catalog that includes peptides, SARMs, and ancillary research compounds. Known for pricing and catalog breadth. Domestic shipping.
Visit Amino Asylum ↗
Pinnacle Peptides
US-based vendor focused on research peptides. Carries a curated catalog with HPLC purity certificates. Known for consistent stocking of popular research peptides including BPC-157, TB-500, and GHK-Cu.
Visit Pinnacle Peptides ↗
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All content on Peptide Price Lab is for informational and research purposes only. Nothing here constitutes medical advice, and research peptides are not intended for human use. Vendor information is provided as a reference and may be out of date. Always consult a licensed healthcare provider and verify information directly with vendors.
Research notes by peptide