Diglycerin

Diglycerin is a water-soluble polyol humectant related to glycerin, used in many personal care products. It attracts and retains moisture, boosts lasting hydration, and improves formula glide and viscosity without a sticky feel.
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Snapshot

Overview
A moisture-binding ingredient that keeps skin feeling plump.
Category
Hydration, Barrier Support
Type
Humectant

Ratings

Overall Rating

Great

Comedogenic Risk

None

Not typically evaluated for comedogenicity — no standardized rating available.

Is Diglycerin a Good Ingredient?

Rated Great due to strong evidence as a stable, effective humectant that boosts hydration with low irritation potential and good formulation compatibility. It delivers sustained moisture without significant tackiness when properly dosed.

Skin Benefits

Helps skin feel plump and supple by drawing in water and softening the look of fine dryness lines. Supports a comfortable, dewy feel without tackiness.

Uses in Skincare & Cosmetics

Used in hydrating serums, gels, and creams to increase water content and skin comfort. Frequently added to cleansers and sheet masks to counteract tightness after washing.

Safety

Considered low risk for irritation or sensitization and suitable for most, including sensitive skin. At very high levels, it may feel tacky or transiently tingle. No notable regulatory restrictions.