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Common conditions that may support medical necessity for supplements include nutritional deficiencies, gut and digestive concerns, metabolic and hormonal conditions, musculoskeletal issues, and immune dysfunction
Whether GHK-Cu produces lasting skin changes, whether tolerance develops, and whether long-term copper exposure in skin has adverse effects are unanswered questions
What it is claimed to do: Stimulate collagen and elastin synthesis Improve skin firmness, thickness, and elasticity Reduce fine lines and wrinkles Support wound healing after procedures What the research shows: Unlike most peptides discussed here, GHK-Cu has human clinical data
Without the benzyl alcohol preservative, bacterial growth can occur within 24-48 hours
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