Polyimide-1 ●
TL;DR. This ingredient is used primarily as a film-former, creating a flexible, durable coating in products such as mascaras, eyeliners, nail products, and long-wear color cosmetics. It helps improve adhesion, wear time, pigment hold, and resistance to smudging or transfer.
What does Polyimide-1 do in a cosmetic formula?
This ingredient is used primarily as a film-former, creating a flexible, durable coating in products such as mascaras, eyeliners, nail products, and long-wear color cosmetics. It helps improve adhesion, wear time, pigment hold, and resistance to smudging or transfer.
Is Polyimide-1 clean?
From a clean-beauty perspective, this material has friction because it is a synthetic film-forming polymer rather than a skin-benefit ingredient. It is generally not a primary irritation concern, but it may be flagged by standards that limit persistent synthetic polymers.
Is Polyimide-1 sustainable?
This material is synthetic and typically petrochemical-derived. It is not readily biodegradable, so its main sustainability concern is environmental persistence after rinse-off or removal.
Is Polyimide-1 COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards because it is a synthetic, non-naturally derived film-forming polymer. Its Green Chemistry alignment is weak due to nonrenewable sourcing and limited biodegradability, despite its high functional efficiency at low use levels.
How does Polyimide-1 work chemically?
The molecule is a high molecular weight synthetic polymer containing cyclic imide linkages in a rigid backbone, which supports strong film formation and mechanical durability. It is typically used as a pre-made dispersion or solution and co-formulated with solvents, plasticizers, pigments, and other film formers to balance flexibility, adhesion, and removability.
Last updated 2026-05-13