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Trehalose

Also known as: Trehalose, D-Trehalose, Mycose

A natural disaccharide sugar that hydrates skin and protects proteins from stress damage.

humectantComedogenic: 0 non-comedogenic

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What it does

Trehalose is a humectant that draws water into the stratum corneum, improving skin hydration and maintaining moisture. It also acts as a protective agent (osmolyte) that stabilizes proteins and cell membranes under environmental stress, including UV exposure and dehydration.

Benefits

Who it suits

How to use

Works in hydrating serums, moisturizers, and essences at 1–5% concentration. No usage restrictions; can be used morning and night.

Pairs well with

Hyaluronic acid, Glycerin, Niacinamide, Peptides

Be careful pairing with

none notable

Safety & cautions

Trehalose is well-tolerated and rarely irritating at typical cosmetic concentrations (1–5%). No known photosensitivity or contraindications with other ingredients.

Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.

Related guides

More humectant

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