Polysilicone-8 ●
TL;DR. This ingredient is primarily a film-forming polymer used to improve water resistance, wear time, slip, and surface feel in skin, sun, hair, and color products.
What does Polysilicone-8 do in a cosmetic formula?
This ingredient is primarily a film-forming polymer used to improve water resistance, wear time, slip, and surface feel in skin, sun, hair, and color products.
Is Polysilicone-8 clean?
From a clean-beauty perspective, it is usually low-irritation because it is a large, inert polymer. The friction comes from its synthetic organosilicon nature and its common placement on standards that limit persistent synthetic film formers.
Is Polysilicone-8 sustainable?
This material is synthetically produced from mineral and petrochemical inputs rather than renewable feedstocks. It is not readily biodegradable, so the main sustainability issue is environmental persistence after rinse-off or product removal.
Is Polysilicone-8 COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards as a synthetic organosilicon polymer. Its Green Chemistry fit is weak because of nonrenewable inputs, limited biodegradability, and persistence, even though it is typically stable and used at low levels.
How does Polysilicone-8 work chemically?
The molecule is a high-molecular-weight organosilicon polymer designed to dry into a flexible, hydrophobic film rather than penetrate skin. Use levels are supplier- and format-dependent, often in the low single digits for film formation, and it is generally stable across normal cosmetic pH ranges when properly dispersed or paired with compatible solvents, oils, or emulsifiers.
Last updated 2026-05-13