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GHK-Cu focuses on rebuilding skin structure through collagen stimulation and tissue repair, while NAD+ optimizes cellular energy and DNA repair mechanisms
They are the modified forms of two different parent peptides
Effects of GHK-Cu on MMP and TIMP expression, collagen and elastin production, and facial wrinkle parameters
Papaioannou I, Twigg GL, Kemp M, et al
Cross-trial numbers are not a duel
To maximize the efficacy of melatonin, it is necessary to check whether the dosage and dosing time of melatonin are used properly according to abnormalities of sleep and circadian rhythms
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