Behenyl PEG/PPG-20/20 Dimethicone

At a glance

INCI name

Behenyl PEG/PPG-20/20 Dimethicone

Function

emulsifier, emollient, surfactant

Typical use level

0.5%–5%

Solubility

both

Stable pH

4–8

CAS number and synonyms are sourced from PubChem. Function, usage levels, pH and compatibility are AI-assisted formulation guidance — verify against your supplier's technical data sheet and applicable regulations before use.

Also known as

PEG/PPG-20/20 Behenyl Dimethicone silicone PEG/PPG emulsifier dimethicone copolyol behenyl KF-6038

Compatibility

Works well with:
cyclopentasiloxane dimethicone glycerin niacinamide hyaluronic acid phenoxyethanol

Use caution with:
high concentrations of electrolytes strong acids strong bases

This silicone-based emulsifier is well suited for water-in-silicone (W/Si) and water-in-oil emulsions and is compatible with a broad range of silicone fluids and cosmetic actives. High electrolyte concentrations can disrupt emulsion stability, so salt levels should be kept low. Avoid extreme pH conditions which may hydrolyze the polyether grafts.

Formulation notes

Behenyl PEG/PPG-20/20 Dimethicone is a silicone-polyether copolymer grafted with a behenyl (C22) fatty chain that functions primarily as a W/Si emulsifier, enabling the formation of lightweight, silky-feeling emulsions and sunscreens. The long behenyl tail enhances emulsion robustness and can impart a mild thickening effect, while the PEG/PPG backbone provides hydrophilic character. It is widely used in color cosmetics, sun-care formulas, and skin-care products where a non-greasy, smooth skin feel is desired.

Frequently asked questions

Related ingredients

• Glyceryl StearateEmulsifier
• LecithinEmulsifier
• Stearic AcidEmollient
• Ceteareth-20Emulsifier
• Cetearyl AlcoholEmulsifier
• Cetearyl GlucosideEmulsifier