Casein-Glutathione Conjugate from Mexico
Casein-glutathione conjugate covalently links antioxidant tripeptide to casein for functional beverages and oxidative stress protection. Classified HTS 3501.90.60.00 as conjugated protein derivative beyond simple mixtures. Enhances stability of labile glutathione.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Use mass spec data confirming covalent conjugation over physical blend
• Validate antioxidant capacity via ORAC/FRAP assays for claims support
• Ensure cold chain <8°C for glutathione stability during import