Dimethyl Sulfone

Dimethyl sulfone (MSM) is an organic sulfur compound classified as a water-soluble humectant. Skincare uses it to support surface hydration and a smoother feel; broader cosmetic benefits are still under study and evidence for topical use is limited.
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Ingredient Snapshot

Overview
MSM, a sulfur compound that helps skin hold onto moisture.
Category
Soothing, Hydration, Sensitive Skin
Type
Humectant

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Helps skin retain water for a softer, cushioned feel. Broader cosmetic benefits are not well established for topical use.

Uses In Skincare & Cosmetics

Included in moisturizers, soothing lotions, and wash-off masks aimed at comfort and hydration, including options for sensitive-prone skin.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Generally low irritation risk, though slight stinging or redness can occur on sensitive skin. Discontinue if persistent irritation develops.

Is Dimethyl Sulfone a Good Ingredient?

Rated Fair: it offers modest humectant support for softness, but strong clinical data for broader topical skin benefits are limited, and some users may notice mild stinging.

Products with Dimethyl Sulfone

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