Support

What we can help with

A data error in a peptide profile

Mechanism, half-life, molecular weight, or research notes that look wrong or out of date. Tell us the peptide and what you believe is incorrect, and a source if you have one.

A vendor listing or price

Prices that no longer match the vendor site, a vendor that has closed, or a supplier you think belongs in the comparison. Listings are independent and we do not take payment for placement.

A peptide we do not cover

Send the name and any synonyms. Profiles need published research to cite, so compounds with no literature behind them may not be added.

Account, subscription, or billing

Sign-in problems, email changes, subscription questions, or data export requests. Email from the address on the account where possible — it saves a round trip.

Apps and sync

Tracker or inventory data not syncing between the web app and the iOS or Android apps. Include your device and app version.

What we cannot help with

Peptide Library is a research and comparison tool, not a clinic, pharmacy, or supplier. We cannot advise on whether to use a compound, what dose to take, how to treat a condition, or how to interpret symptoms or lab results. Questions like those belong with a qualified healthcare professional.

We also do not sell, ship, or fulfil peptides, and we cannot help with an order placed through a vendor listed in the comparison. Contact that vendor directly.

Before you email

The FAQ answers most common questions about sourcing, storage, tracking, and how the site works. How rankings work explains where vendor scores come from and why placement cannot be bought. About covers who operates the platform.

Mobile apps

Peptide Library is also available on iOS and Android. Tracker and inventory data syncs across web and mobile when you are signed in.