Polyglycerin-3

Polyglycerin-3 is a short-chain polymer of glycerin made of three linked glycerol units. It's used as a gentle humectant and co-solubilizing agent, improving moisture retention, slip, and compatibility in aqueous formulations.
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Ingredient Snapshot

Overview
A gentle humectant that hydrates skin without feeling greasy.
Category
Hydration
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Provides lasting surface hydration without greasiness, supporting a comfortable, supple feel. Gentle enough for frequent use and sensitive skin routines.

Uses In Skincare & Cosmetics

Used in gels, toners, and cleansers as a mild hydrating agent that helps maintain clarity and easy rinse-off. Also found in lightweight moisturizers to improve water-based hydration.

Comedogenic Rating

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

Safety

Considered low-irritation and compatible with sensitive skin. No common regulatory restrictions. As with any humectant, pair with an emollient/occlusive if skin feels tight in very dry environments.

Is Polyglycerin-3 a Good Ingredient?

It's a gentle, water-soluble humectant that reliably improves hydration with minimal irritation and strong formulation stability, which is what supports the Good rating for routine use across skin types.