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GHK-Cu is particularly useful for Fitzpatrick III through VI skin tones because its anti-inflammatory mechanism addresses the inflammatory pathways that drive post-inflammatory hyperpigmentation in melanin-rich skin
Diabetes Obes Metab (2019) 21:127790
Tanguy S, Morel S, Berthonneche C, Toufektsian M-C, de Lorgeril M, Ducros V, et al
IGF1 is a primary mediator of GH activity and directly influences muscle hypertrophy, protein synthesis, and nutrient partitioning (Yakar et al., Endocrinology )
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