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Can you advise on dosing or skincare routines
Everything below is ingredient-level evidence, mostly from oral supplements
Photomed Laser Surg
First, the copper ion is photochemically active, so prolonged exposure to UV or visible light can drive degradation of the GHK-Cu complex
Research published in Endocrinology demonstrated that this specific fragment contains the region responsible for growth hormones fat metabolism effects without the domains that bind to growth hormone receptors and trigger IGF-1 production, growth, and metabolic changes
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