dosage of ghk cu peptide GHK-CU Chart: Complete Reference Tables for Every Protocol GHK-Cu Dosage Guide: Typical Protocols,

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Multiple clinical trials in photoaged skin (sun damage) have shown that topical GHK-Cu formulations improve skin appearance including reductions in fine lines and wrinkles, improvement in skin firmness and elasticity, enhancement of skin texture and smoothness, increase in skin thickness (reversing age-related dermal atrophy), improvement in skin clarity and reduction in hyperpigmentation, and overall rejuvenated appearance

This is not merely correlational

Importantly, 5-amino-1MQ has high selectivity and does not inhibit the related SAM-dependent methyltransferases or enzymes in NAD + salvage pathways

They are typically administered via subcutaneous injection, though some may be available in oral, nasal, or topical forms