Ingredient

Polyisobutene

Low risk

FunctionTexture

What it is — Polyisobutene (INCI: Polyisobutene) is an emollient — an ingredient that softens and smooths.

What it does — It is commonly used as a synthetic film-forming agent that adds cushion and water resistance.

Typical use — It is common in creams, lotions, conditioners, masks, balms and leave-in treatments, where it contributes slip and a conditioned skin- or hair-feel. The exact skin- or hair-feel it gives depends on how rich the ester or oil is and how much is used.

Who it suits / good to know — Generally well tolerated across skin types. Richer emollients can feel heavy on very oily or blemish-prone skin, so texture preference varies by person. Choosing lighter or richer emollients is mostly about matching your skin type and the season.

Safety — DHALIORA grades it low risk: large inert polymer that stays on the skin surface. This reflects the ingredient in general and is not medical advice; patch-test if your skin is easily irritated.

Why we grade it Low: Low risk — large inert polymer that stays on the skin surface.
Cross-reference

Found in these DHALIORA products

Found in 4 DHALIORA products

Lesschemi Galactomyces Derma Lotion Lesschemi Galactomyces Derma LotionScreening 9.8 Pation Noscarnine Nine Spot Patch Pation Noscarnine Nine Spot PatchScreening 9.4 Somi Volume Repair Eye Cream Somi Volume Repair Eye CreamScreening 9.5 YBK Pore Clear Clay Cream Mask YBK Pore Clear Clay Cream MaskScreening 9.4
How grades are set — Risk reflects our own reading of publicly available safety data, an EWG-style reading shown at the worst-case grade we've assigned this ingredient across products. It isn't a third party's proprietary score, and it isn't medical advice. Always read the packaging and patch-test where indicated.
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