Science
Mechanism of Action
This ingredient functions as an effective emollient, forming a protective, impermeable film on the skin's surface. This occlusive barrier minimizes transepidermal water loss (TEWL), thereby enhancing skin hydration and supporting the restoration of the skin's natural barrier function. Additionally, it provides a lubricating effect, contributing to a smooth and soft skin feel.
Research
Clinical Evidence
High confidence8%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Hydrogenated Polyisobutene exhibits excellent stability across the entire pH range, including extreme pH values, and is entirely stable against oxidation.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Hydrogenated Polyisobutene is safe for use in cosmetics and personal care products, basing its assessment on a pattern of safe use despite acknowledging some data gaps regarding specific maximum concentrations. The FDA also approves Polyisobutene (butyl rubber) for various indirect food contact applications. This ingredient complies with the general provisions of the Cosmetics Regulation for products marketed in the European Union.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrogenated Polyisobutene is a valuable occlusive emollient, demonstrably effective at reducing transepidermal water loss and significantly enhancing skin hydration, while being remarkably stable and well-tolerated across all skin types.
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