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Peptides commonly discussed in relation to skin appearance, texture, and topical formulations.
Category
Evidence level
Regulatory / research status
A cosmetic signal peptide used in topical skincare formulations and commonly discussed in relation to skin appearance.
A naturally occurring copper-binding tripeptide studied in laboratory settings and used in some topical cosmetic products.
Short chains of amino acids derived from collagen, widely sold as a dietary supplement and studied in relation to skin and joint measures.
A cosmetic peptide used in topical formulations and commonly discussed in relation to the look of expression lines.
A synthetic peptide discussed in relation to pigmentation research and flagged by regulators as an unapproved product.