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
GHK-Cu (Glycyl-L-Histidyl-L-Lysine copper complex) is a naturally occurring copper peptide first identified in human plasma by Dr
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J Clin Invest 128:33413355 Robberecht W, Philips T (2013) The changing scene of amyotrophic lateral sclerosis
"Setria glutathione and whole blood levels." Clinical Nutrition , 2020
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