ghk-cu hair growth study clinical trial peptide for hair: the complete guide to copper peptide restoration Ghk-Cu results for hair loss

Unlike exogenous testosterone that shuts down your natural production, HCG works with your body's existing machinery

Limited human clinical trial data Most evidence is preclinical and observational

Recent human topical evidence A 2023 IRB-approved 21-woman topical trial of NEEL gel (a stabilized GHK-Cu topical) reported an average 28% increase in skin collagen density at 3 months, with a top quartile reporting 51%

Normally, GHK-Cu's collagen-stimulating effects outweigh this degradation

The remaining 500 mcg is wasted

Sleep quality Studies since at least the 1990s have shown that higher GHRH activity can decrease wakefulness and increase slow-wave sleep.20 21 The relationship has to do with GHRH being necessary to slide you into the deepest sleep stages and keep you there.22 So the science supports using something like CJC-1295 to get more shut-eye