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GHK-Cus superior performance suggests it addresses skin aging through mechanisms that complement or exceed these standard treatments
Mitra S, Chakraborty AJ, Tareq AM, Emran TB, Nainu F, Khusro A, et al
Apply a few drops (2-3 or desired amount) to clean, slightly damp skin (morning and evening)
Consequently, the more melanin the skin has the darker the skin color is
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