Legal Status of Peptides
Legal for research use. FDA Import Alert 66-80 restricts GLP-1s (Semaglutide/Tirzepatide) for personal use. The FDA regulates peptides intended for human therapeutic use as prescription drugs. Research peptides labeled 'not for human consumption' are widely available. Several peptides have been FDA-approved (e.g., semaglutide, tesamorelin). The legal landscape is evolving, with the FDA increasing scrutiny on compounding pharmacies.
Cross-reference this brief with our peptide travel regulations hub for neighbouring jurisdictions.
Airport & Customs Rules
- CBP may inspect pharmaceutical items
- Carry prescription for Rx peptides
- Research peptides — carry invoice showing legal purchase
- TSA allows medications and ice packs in carry-on
- Domestic travel generally straightforward
Airport Intelligence
Declaration threshold
Personal-use quantities pass routinely; declare if asked
Inspection likelihood
LowCommonly confiscated
- Bulk quantities that suggest resale or commercial import
- Unlabeled bulk powders >10g
- GLP-1s subject to current import alerts (US)
Airport-specific notes
- JFK / LAX / MIA: CBP enforces FDA Import Alert 66-80 on Semaglutide & Tirzepatide — personal GLP-1 imports routinely seized
- TSA permits frozen ice packs in carry-on for medical items
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