Glossary · Actives
Short chains of amino acids used as cosmetic actives, such as signal peptides that target the look of fine lines. Evidence varies widely between peptides, so claims are best tied to studies on the specific peptide and level used.
Sources: 1
The right active at the right level and pH is what makes a claim credible; Guires CSL scientists choose actives on published evidence and check every level against the rules of your target markets.
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Peptides evidenceRelated terms
Alpha hydroxy acids such as glycolic and lactic acid are water-soluble exfoliants that loosen dead surface cells; the beta hydroxy acid salicylic acid is oil-soluble and works inside pores.
Read definition →Vitamin A derivatives used in cosmetics, including retinol, retinal and retinyl esters.
Read definition →Regulations and standards are listed first, then peer-reviewed literature. Sources checked October 2026.
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