Skin is where GHK-Cu actually shines Human data shows improved collagen elasticity and thickness after consistent topical use Joint benefits are mostly extrapolated from wound healing biology not direct studies

If we’re being honest skin has real clinical backing joints are more theoretical anecdotal

Mechanistically it should help joints collagen ECM remodeling but evidence isn’t nearly as strong as skin

Helped my skin quality a lot joints barely changed

Feels more like tissue maintenance than joint repair

I see it as anti-aging not injury healing

Skin glow came in weeks Joint relief ? Hard to tell.

Works great topically for skin not sold on joints

Skin improvements are consistent Joint feedback is hit or miss

More cosmetic than orthopedic in my opinion.

Skin responds faster because turnover is higher

Joints take longer so effects are harder to notice

Overall skin first peptide with secondary joint upside

Better for aging skin than beat up joints