ghk cu dermatologist In one study, collagen production improved in 70% of participants using GHK- — compared to 50% with vitamin C cream and 40% with retinoic acid, all measured in the same study. GHK-Cu GHK-Cu Peptides Before and After:
Description
This is why research settings default to injectables bypassing the digestive system so the compound reaches circulation intact

It is not an FDA-approved drug (the only approved recombinant IGF-1, mecasermin, is indicated for severe primary IGF-1 deficiency in children, not athletic use)

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Treated wounds also show increased collagen deposition and enhanced angiogenesis, with new blood vessel formation supporting healing tissue with improved nutrient delivery
