Polydecene ●
TL;DR. This ingredient is used as a synthetic emollient and film-forming oil, adding slip, cushion, gloss, and water resistance to skin care, hair care, and makeup formulas.
What does Polydecene do in a cosmetic formula?
This ingredient is used as a synthetic emollient and film-forming oil, adding slip, cushion, gloss, and water resistance to skin care, hair care, and makeup formulas.
Is Polydecene clean?
From a clean-beauty perspective, it often has friction because it is a petrochemical-derived synthetic polymer and may appear on brand no-lists for persistent synthetic films. Skin tolerance is generally good, with low sensitization potential, so the concern is more standards alignment than irritation.
Is Polydecene sustainable?
It is made from fossil feedstocks through polymerization and is not readily biodegradable. Its environmental profile is weaker than plant oils or esters because the material can persist after rinse-off use.
Is Polydecene COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic as a petrochemical synthetic polymer. It fits Green Chemistry poorly because it relies on nonrenewable feedstock and has limited biodegradability, although it is chemically stable and typically used without reactive byproducts in finished formulas.
How does Polydecene work chemically?
The molecule is a branched saturated hydrocarbon oligomer with no polar functional groups, which explains its high spreadability, water repellency, and low reactivity. It is commonly used around 1% to 20% depending on product type, is essentially pH-independent, and can help solubilize oil-phase waxes, pigments, and lipophilic actives.
Last updated 2026-05-13