No human dosing studies have been published, and no oral dose equivalents have been established due to the absence of oral bioavailability data
GHK-Cu is commonly injected subcutaneously at doses of 1-4 mg daily for systemic effects (skin, hair, wound healing)
Water and Solvent Content Residual water and solvents can contribute to total mass without forming part of the peptide sequence
Within hours of treatment, research models begin showing increased NAD+ levels and reduced 1-MNA production, but the full spectrum of metabolic changes develops over days to weeks as downstream signaling cascades adjust to the new metabolic environment
Larger 70mg formulations scale proportionally while maintaining this ratio
Our complete beginners guide covers how peptides work, the six main treatment categories, safety, legal status in 2026, and what a first consultation at BHRC looks like