Ingredient Guide
Polysorbate 20
Also known as: Polysorbate 20, Tween 20, Polyoxyethylene (20) Sorbitan Monolaurate
All skin types
What It Is
A non-ionic surfactant and emulsifier derived from sorbitol and lauric acid (from coconut or palm oil). Widely used in skincare to keep oil and water ingredients mixed.
What It Does
Emulsifies oil and water ingredients, solubilizes fragrance and oil-soluble actives into water-based formulas, and improves the texture and spreadability of products.
Best For
Emulsification and solubilization — functional ingredient
Benefits
- Effective emulsifier at low concentrations
- Helps solubilize oil-soluble ingredients into water-based formulas
- Generally non-irritating and well tolerated
When to Be Careful
- Very rare sensitivity in some individuals
- Some concern about ethylene oxide impurities in poorly manufactured versions — well-controlled manufacturing addresses this
Commonly Found In
TonersSerumsMicellar watersExfoliating formulas
FAQs About Polysorbate 20
What does polysorbate 20 do in skincare?
It acts as an emulsifier and solubilizer — helping oil-based ingredients stay dissolved and evenly mixed in water-based formulas.