Science
Mechanism of Action
This copolymer operates by increasing the viscosity of non-aqueous cosmetic formulations, thereby improving texture, stability, and potentially product penetration. On the skin, it forms a lightweight, occlusive yet breathable film. This film is instrumental in minimizing transepidermal water loss, thus supporting sustained hydration, and concurrently provides a physical shield against various environmental aggressors.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Decene/Butene Copolymer safe for cosmetic use under current practices and concentrations. This assessment is based on its classification within the polyene group, for which animal studies indicated low systemic toxicity and an absence of teratogenic, carcinogenic, or genotoxic effects. Furthermore, human dermal sensitization studies for a related polyene (100% hydrogenated polyisobutene) yielded negative results, with no irritation or sensitization observed for other polyene ingredients. No specific SCCS opinion is available for this ingredient.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Decene/Butene Copolymer is a valuable non-aqueous ingredient, enhancing formulation texture and stability while forming a hydrating, protective film on the skin, all supported by a strong safety profile.
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References
Sources