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Compliance

Is there an FDA-compliantpeptide website?

No website can be certified or guaranteed FDA compliant, and we never claim it. What we can do is build controls around the website elements FDA warning letters to peptide sellers have actually cited, and give your team and counsel a clear place to review them. This page is not legal advice.

What recent warning letters cited.

In a December 12, 2025 letter, FDA said that "FOR RESEARCH ONLY" and "NOT FOR HUMAN USE" labeling did not change its conclusion. The letter quoted body-function and disease claims from product pages.

Seven letters dated March 31, 2026, published April 7, made the same point about research-use and "not intended for human consumption" labels. They cited therapeutic claims on product pages, bacteriostatic water sold alongside the peptides, code-name product labels and a community forum.

Five letters dated August 24, 2026 cited disease or body-function claims, bacteriostatic water sold alongside, dosing guidance and, in one letter, a peptide calculator. Every site used a research-use disclaimer. FDA judged each website as a whole, by its net impression.

What to review, and where the platform helps.

The platform helps a team keep copy in line with its own policy. It does not make a product lawful. Removing claims does not change what a business sells or how it sells it, and a disclaimer does not decide intended use.

How the copy checker works →
Warning-letter themes mapped to a site review
What the letters citedWhat to review on your siteWhere the platform helps
Disease and body-function claims on product pagesProduct copy, page sections, popups, emails and blog postsThe copy checker flags treatment, weight or fat-loss, muscle-building and anti-aging claims on products, pages, sections, emails and AI edits
Dosing guidance and calculatorsAny dosing, units-per-day or calculator contentThe checker flags dosing and injection language; whether to publish tools is your decision with counsel
Products sold alongside, such as bacteriostatic waterYour catalog and bundlesYour catalog is your decision with counsel; the platform does not decide what you sell
Code-name labels and community forumsNaming, forums, reviews and social linksReviews and pages sit in the same admin; the checker covers storefront copy, not your naming strategy
Research-use disclaimers that did not change the conclusionWhether the whole site matches the disclaimerConfigurable disclaimers at add-to-cart, cart and footer, plus attestation and age stored per order and blocked states you choose
"FDA approved" style authority claimsBadges, headlines and imageryThe checker flags "FDA approved", "clinically proven" and "doctor recommended"

Controls we build into every store.

The copy checker runs in off, warn or block mode across products, pages, sections, header and footer, cart, popup, collections, emails and AI-agent edits. Research-use attestation and minimum age are stored on every order. You can open the store, add an age gate or require accounts, and block the countries and US states you choose.

Age gate and attestation →
Product status and compliance panel with attestation toggle and copy check result

PepXLabs demo store · sample data

Try the free tools first.

Our free RUO copy checker is a simplified version of the platform's checker. Paste product, page or email copy and see flagged phrases with a reason. The disclaimer generator drafts footer, product, cart, checkout and terms text for counsel to review. Both run in your browser and send nothing.

Free RUO copy checker →RUO disclaimer generator →RUO website compliance checklist →

What we will not promise.

We do not certify compliance, give legal advice, write your product claims or guarantee processor approval. Have qualified counsel review your products, business model and the site as a whole. We build the controls and configure them with you.

Before you choose a build.

Can you build an FDA-compliant peptide website?

No one can certify a website as FDA compliant. We build controls that help your team review the elements FDA warning letters have cited, such as claims, dosing language and disclaimers. Counsel decides what your business can sell and say.

Does a research-use-only disclaimer protect my store?

Recent FDA warning letters say research-use labeling did not change the agency's conclusion when the rest of the site showed human use. A disclaimer is one part of a consistent site, not a substitute for it.

What does the copy checker flag?

Weight or fat-loss, muscle-building, anti-aging, healing or treatment claims, dosing, injection, human-use framing, "clinically proven", "FDA approved", "doctor recommended" and before/after claims, on products, pages, sections, emails and AI edits.

Is this legal advice?

No. This page summarizes public warning letters and describes software controls. Have qualified counsel review your products and your whole site.

See it with your store in mind.

We can review your catalog, documentation, payment requirements and team workflows on the call. No promises on revenue, rankings or approvals.

Schedule a call to see a demo

Related guides

Compliance

RUO Website Compliance Checklist: Disclaimers, Attestation, Age Gates and Copy

A page-by-page RUO website checklist covering disclaimers, copy, imagery, checkout confirmations and review operations. Not legal advice.

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COAs and Lot Verification: What Every Research Peptide Product Page Needs

Present lot-specific COAs, readable laboratory evidence and public verification on research peptide product pages without overstating test results.

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Payments

Peptide Payment Processing: Building a Store Processors Will Review Favourably

What payment reviewers look for on a research peptide website, plus an audit checklist and processor-agnostic checkout design. Approval is never guaranteed.

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