Quick answer
Blend of stearic acid and glycerin derivative; Primarily used as an emulsifier; Has emollient properties for skin; May be synthetic or animal-derived Key benefits: Hydration.
Polyglyceryl-2 Stearate
Updated
Stearic acid, monoester with oxybis(propanediol)
Purpose
An emulsifier used to improve stability and sensory aesthetics of creams, lotions and other types of cosmetics.
Rating
GOOD
Category
Emulsifier, Emollient, Cleansing Agent
INCI Purpose
SURFACTANT - EMULSIFYING
Benefits
Alternative Names
At a Glance
Blend of stearic acid and glycerin derivative
Primarily used as an emulsifier
Has emollient properties for skin
May be synthetic or animal-derived
Article
Polyglyceryl-2 stearate is the ester of humectant diglycerin and the fatty acid stearic acid. It is used in cosmetics for its emulsifying, surfactant, and emollient properties.
The primary use of polyglyceryl-2 stearate in cosmetics is emulsifying. In this role, it negates the need to use greater amounts of heavier-feeling emulsifiers while also improving sensory aesthetics of the product.
This ingredient may be synthetic (the type Paula’s Choice uses) or animal derived. Use levels of polyglyceryl-2 stearate in cosmetics range from 1–5%, depending on whether it’s the primary or secondary emulsifying agent, sometimes referred to as a co-emulsifier.
See: Stearic Acid, Diglycerin
References