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.
A moisture-binding ingredient that keeps skin feeling plump.
Category
Hydration, Barrier Support
Type
Humectant
Ingredient Ratings
Overall Rating
Great
Comedogenic Risk
None
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.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
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.
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.