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Ingredient · INCI reference

Cetyl PEG/PPG-10/1 Dimethicone

A silicone-based emulsifier used to make stable, light water-in-silicone sunscreens and long-wear formulas.

What it is

This silicone polymer modified with PEG/PPG and cetyl groups acts as a water-in-oil and water-in-silicone emulsifier. It binds water into silicone or oil phases to create stable, smooth emulsions that feel light and wear well.

Safety & warnings

Considered a mild, well-tolerated silicone emulsifier.

Origin & sourcing

Synthetic silicone-polyether copolymer.

Questions everyone asks

What does this emulsifier do?

It blends water into silicone or oil to make stable, light water-in-silicone creams.

Why use it in sunscreen?

It helps create durable, lightweight formulas that spread smoothly.

Sources & references

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