About Peptide Library

Peptide Library is an independent platform for researching peptides, comparing vendors and pricing, calculating concentrations, and tracking research. It does not sell peptides. Content is for research and educational use only and is not medical advice.

What Peptide Library is

Peptide Library is a research, comparison, calculator, and tracking platform. On the web and in the iOS and Android apps, researchers can browse peptide profiles, compare independent vendor listings and price per mg, calculate reconstitution volumes, and keep personal logs.

The legal entity that operates the platform is Superfime LLC. Support is available at support@peptidelibrary.app.

Research statistics

The Research Intelligence Center publishes original statistics on peptide research: publications and clinical trials for the peptides in the library, classified by study type and evidence, with the datasets, charts and methods behind every number. It is home to the annual State of Peptide Research report and a press kit for journalists.

Work with us

Vendors can apply to be listed in the directory and price comparison, and manage their listing in the vendor portal.
Creators can join the Creator Partner Program and earn a share of the Pro subscriptions they bring.
Developers can use the public API and the MCP server.

What Peptide Library is not

Not a peptide vendor. We do not sell, ship, or fulfill peptide products.
Not a clinic, pharmacy, or medical service.
Not medical advice, diagnosis, treatment, or prescribing guidance.

Where it is available

How we collect information

Vendor names, product listings, and prices come from publicly listed vendor catalogs that we compare for research planning. Price per mg is calculated when vial size in milligrams and list price are known. Rankings use reviewer scores — see How rankings work.

Some vendor links may include affiliate or coupon parameters. That does not change ranking placement. Vendors cannot pay to be ranked higher.

How peptide profiles are written and reviewed

Peptide profiles are compiled by the Peptide Library editorial team from peer-reviewed literature (PubMed and DOI-resolvable journals), public regulatory records (FDA, WADA) and chemical registries (PubChem, ChEMBL, DrugBank, FDA UNII). Cited PubMed studies are audited against the NCBI record, both that the citation is accurate and that the study is about the peptide it is cited for, and each profile carries its last review date. The methodology page describes the process and its limits; the editorial policy covers sourcing standards, what we will not publish, and how to report an error.