Polylysine is a naturally occurring peptide made of the amino acid lysine. It is known for its antimicrobial properties and is used as a natural preservative.

Is Polylysine safe for skin?

Polylysine is generally considered safe for topical application in cosmetic formulations. It is well-tolerated and has a low risk of irritation or sensitization.

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Polylysine

Polylysine is a naturally occurring, cationic homopolymer of L-lysine, an essential amino acid. It is primarily used as a natural antimicrobial agent and preservative in cosmetics and food. Its positive charge allows it to interact with negatively charged bacterial cell membranes, disrupting their function.

NoneAntimicrobial peptideVeganEvidence: Medium

BenefitGood 2.5 / 4

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

natural antimicrobial
preservative properties

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Frequently asked questions

What is Polylysine?: Polylysine is a naturally occurring peptide made of the amino acid lysine. It is known for its antimicrobial properties and is used as a natural preservative.
Is Polylysine safe for skin?: Polylysine is generally considered safe for topical application in cosmetic formulations. It is well-tolerated and has a low risk of irritation or sensitization.