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Bis-PEG-15 Dimethicone/Ipdi Copolymer

What Bis-PEG-15 Dimethicone/Ipdi Copolymer is & what it does

Castor Oil/IPDI Copolymer is a synthetic polymer made by reacting castor oil with isophorone diisocyanate (IPDI). It is used as a film former and texture-enhancing agent that can help a sunscreen or cosmetic layer evenly on the skin and improve water resistance and wear. The castor oil portion contributes conditioning fatty components while the polymer network adds durability to the film.

What does Bis-PEG-15 Dimethicone/Ipdi Copolymer do in skincare?

Bis-PEG-15 Dimethicone/Ipdi Copolymer is a silicone-based copolymer used mainly as a film former and skin-conditioning agent. It can help a formula spread smoothly and leave a soft, even finish on the skin, which is useful in sunscreens and primers. It supports texture and wear rather than acting as an active.

Is Bis-PEG-15 Dimethicone/Ipdi Copolymer safe?

Bis-PEG-15 Dimethicone/Ipdi Copolymer is a large silicone copolymer used in cosmetics as a film former and texture agent, and it is generally considered safe at the levels used in finished products. Molecules of this size tend to stay on the skin surface rather than penetrate. If you have specific concerns, a qualified professional is the best resource.

Is Bis-PEG-15 Dimethicone/Ipdi Copolymer natural or synthetic?

Bis-PEG-15 Dimethicone/Ipdi Copolymer is synthetic, a silicone copolymer built from a dimethicone backbone, PEG (polyethylene glycol) units, and an IPDI (isophorone diisocyanate) component. It is manufactured rather than sourced from a plant or animal. Its structure is engineered to act as a film former in cosmetic formulas.

Sunscreens with Bis-PEG-15 Dimethicone/Ipdi Copolymer

We rate 6 sunscreens that contain it:

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