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It is not a DEA-scheduled controlled substance
Cosmetic, Dietary Supplement, Medication, and Prescription Drug Distinctions A cosmetic GHK-Cu serum is not regulated like an FDA-approved drug, and a compounded injectable preparation is not the same as a cosmetic product
Research has explored its interactions with sleep architecture, neuroendocrine pathways, and stress-response mechanisms, with particular interest in its potential influence on growth hormone secretion and neuroprotective processes during sleep states
It contains 0.9% (9 mg/mL) benzyl alcohol, which functions as a bacteriostatic preservative by inhibiting microbial growth in the vial