ghk cu randomized clinical trial skin Epigenetic mechanisms activated by GHK-Cu increase collagen density in GHK-Cu Cooper Peptide: The Complete
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WYN's Advice True rejuvenation requires both surface-level renewal and deep structural repair

Fewer sebaceous glands, lower baseline collagen turnover

Meta-analysis: melatonin for the treatment of primary sleep disorders
Document dosing rationales (route, concentration, frequency) and use pilot results to set dose escalation or fixeddose arms in the main study

This combination could result in more efficient repair, which in turn may deepen sleep further
