The Peptide Report

Is GHK-Cu Legal to Travel With in 2026? TSA & Customs Guide
Is GHK-Cu Legal to Travel With in 2026? TSA & Customs Guide
Apr 29, 2026
A regulatory deep-dive into how topical GHK-Cu and SNAP-8 peptide balms are classified under cosmetic rules — and what that means for TSA, international customs, and travel-size carry-on limits in 2026.