In a comparative study using thigh skin in women with aged skin, participants applied topical GHK-Cu alongside vitamin C and retinoic acid over 12 weeks, with collagen improvement measured through biopsy-based markers
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Central sensitization refers to a phenomenon in which the central nervous system becomes hypersensitive to pain signals, leading to the perception of pain even without a noxious stimulus 8,9
Claims that NAC treats lung disease, psychiatric disorders, infections, cancer or liver injury are drug or disease claims and should not appear in ordinary supplement marketing