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Skin type isnt a factor because injections, not the skin surface, go into the muscle
These animals were housed under controlled environmental conditions and had free access to food and water [1]
it can take three or four months before you notice a change in those areas
Heinemann L et al
The GHK-Cu skin literature is genuinely substantial three decades of work reviewed in Pickart & Margolina 2018 (PMID 29986520) describes collagen and glycosaminoglycan stimulation, antioxidant gene modulation, and wound-healing effects
Research suggests that this peptide helps block the transformation of non-fatty foods into body fat, making it harder for the body to store new weight
