Peptide rules and licences
PeptideClinic has 6 guides on licensed peptide therapy clinics, clinicians and compounding pharmacies in the United States, grouped by country.
General
- How to check a peptide clinic's licence
The four public registers that verify a peptide clinic, clinician or compounding pharmacy — state boards, the NPI registry, the FDA 503B list and pharmacy lookups — and what each one can and cannot tell you.
- Common mistakes when choosing a peptide clinic
Five mistakes to avoid: skipping the licence check, not asking about the pharmacy, comparing only the monthly price, trusting marketing claims, and relying on an old rule.
- FDA rules for compounded peptides, in plain words
How sections 503A and 503B decide which peptides a pharmacy may compound, what the February 2026 Category 1 news changed, and where to check the current status.
- How to compare peptide providers
Ask every provider for the same three things: the licence its prescribers hold, the pharmacy that dispenses, and the total price in writing. Then compare the answers side by side.
- How to read a peptide clinic listing
Every listing on this site shows services, prescriber type, licence check method and pricing. This guide explains each attribute and what it tells you.
- Peptide clinic rules in the United States
A summary of the rules that apply to peptide clinics, clinicians and compounding pharmacies in the United States, drawn from the public registers this directory uses.
Published by PeptideClinic. How we check each peptide provider.