GHK-Cu's Unique Regulatory Situation What makes GHK-Cu's regulatory story unique is its dual classification based on route of administration: What This Means Non-injectable GHK-Cu (topical creams, serums, etc.) was in Category 1 meaning it was under evaluation but generally available for compounding
Dosing: Start 2.5 mg injected SQ once weekly in the abdomen, thigh, or upper arm
Those search terms usually point to public discussions about vial strength, concentration math, handling, and route-of-use language
Francis GL, Ross M, Ballard FJ, Milner SJ, Senn C, McNeil KA, Wallace JC, King R, Wells JR (1992) Novel recombinant fusion protein analogues of insulin-like growth factor (IGF)-I indicate the relative importance of IGF-binding protein and receptor binding for enhanced biological potency
Post-workouts (recovery) Recovery supplements also often come in the form of drinks