Best peptide skincare supplement Peptide skincare supplements, available in topical serums/creams or ingestible powders/capsules, contain amino acid chains that signal skin cells to produce more collagen, elastin, and keratin, improving firmness, reducing wrinkles, strengthening the skin barrier, and boosting hydration, with topical use being most direct for skin, while supplements support overall body protein, but consulting a doctor for oral forms is best.
