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10.1016/j.imbio.2014.02.010 Immunobiology 82 van VelzenL

M., Iqbal, S., & Rashid, M

In another trial, 41 women with mild to advanced photodamage applied GHK-Cu eye cream for three months and saw reduced lines and wrinkles, improved skin density, and increased skin thickness better than both placebo and vitamin K cream.3 Similarly, in a pilot study investigating copper tripeptide topicals for aged skin, experts found that they increased skin thickness and elasticity, improved hydration, and boosted collagen synthesis.3 Hair growth In a review from 2023, experts explained that GHK-Cu may promote hair growth in a few different ways

Originally developed as a tanning agent (acting via MC1R receptors), it also binds to melanocortin receptors in the brain (particularly MC3R and MC4R) that influence sexual function