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There are case reports raising concern about melanoma, a serious and potentially life-threatening form of skin cancer, but long-term risk has not been well defined
Effect of human insulin-like growth factor-binding protein-1 on the half-life and action of administered insulin-like growth factor-I in rats
GHK-Cu applied to thigh skin for 12 weeks improved collagen production in 70% of the women treated, in contrast to 50% treated with the vitamin C cream and 40% treated with retinoic acid
Roth Z, Aroyo A, Yavin S, Arav A
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