Polyisobutene

Summary

Polyisobutene is one of three non-volatile hydrocarbon fluids (with Hydrogenated Polydecene and Hydrogenated Polyisobutene) forming the clear oil-phase base of the Opuliss Beauty Lip Gloss family, contributing cushion, slip, and mirror shine. It appears in 22 products in our range.

About

On an ingredient list it is written as Polyisobutene. It is synthetic (polyisobutylene).

In the Formula

It is an emollient. It carries pigment, softens the feel of the film, and keeps the formula from sitting dry on the skin. Formally it is classed as emollient / skin-conditioning agent (gloss/shine oil-phase base).

The Evidence

Its safety for cosmetic use has been assessed by the expert panel review Final report of the cosmetic ingredient review expert panel on the safety assessment of Polyisobutene and Hydrogenated Polyisobutene as used in cosmetics (?, 2008, Int J Toxicol, PMID 19101833). We cite what the ingredient is assessed for, not what a finished product was claimed to do.

Honest Limits

Polyisobutene does its job inside the formula. It is not an active, and nothing on this page should be read as a treatment claim.

Where we use it

• Lip Gloss Liquid Bare Shine Long Lasting Brilliance For Everyday Glam
• Lip Gloss Illumination For Beauty Enthusiasts Fuller Lips Shine
• Lip Gloss Chestnut Illuminates Lips With Brilliant Shine Glam Lovers
• Lip Gloss Clear Illuminating Shine For All Women Everyday Glow
• Lip Gloss Coco Full Shine Long Wear For Bold Lip Lovers
• Lip Gloss Liquid Coral Illumination Fuller Lips Shine Makeup Lovers
• Lip Gloss Crimson One Swipe Fuller Lips Shine Bold Lip Lovers
• Lip Gloss Dripping Gold Liquid Shine Fuller Lips Bold Makeup Lovers

And 14 more.