The 503A Bulks List identifies certain bulk drug substances that may be used in traditional patient-specific compounding when other statutory conditions are satisfied and no applicable monograph or approved-drug-component pathway applies
The goal is to help individuals adopt long-term, healthy lifestyle changes
While large human trials are pending, preclinical and mechanistic evidence is strong
Laboratory studies show GHK-Cu treatment results in improved hair shaft diameter, enhanced cuticle structure regularity, increased cortical density, and superior overall fiber integrity, translating into hair that appears thicker, stronger, and more resistant to breakage in experimental models
If the test tube is clear or confirmed to have aseptic growth, it is judged as qualified
Human Clinical Data (20242025): While much of the early data was preclinical, a 2025 systematic review in HSS Journal analyzed its emerging use in sports medicine