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GHK-Cu is regulated as a cosmetic ingredient, not an approved drug for therapeutic claims, and regulatory status of both the peptide and needling devices varies by jurisdiction

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

Unlike systemic steroids or NSAIDs, BPC-157 does not impair immune function or elevate liver enzymes

One study found people with obesity who had higher levels of glutathione lost more weight when they followed a healthy eating plan for 6 months