Acrylic Acid ●
TL;DR. This ingredient is mainly a reactive monomer used to make synthetic polymers that act as thickeners, film-formers, gel builders, and absorbent agents. It is not typically used as a free monomer in finished beauty formulas.
What does Acrylic Acid do in a cosmetic formula?
This ingredient is mainly a reactive monomer used to make synthetic polymers that act as thickeners, film-formers, gel builders, and absorbent agents. It is not typically used as a free monomer in finished beauty formulas.
Is Acrylic Acid clean?
From a clean-beauty perspective, it has significant friction because the free monomer is strongly irritating and is tightly controlled as a residual in related polymers. Standards and retailers usually focus on residual limits, supplier documentation, and whether the final polymer system meets their restricted-substance rules.
Is Acrylic Acid sustainable?
It is usually made from fossil-derived propylene, although bio-based routes exist. The small molecule is readily biodegradable, but its main cosmetic relevance is as a feedstock for synthetic polymers, whose environmental profile depends on the final structure and degradability.
Is Acrylic Acid COSMOS-approved?
It is not aligned with COSMOS-natural or COSMOS-organic as a standalone petrochemical synthetic monomer. Its biodegradability is a positive Green Chemistry point, but renewable sourcing, reactive handling, and downstream polymer persistence are the main limitations.
How does Acrylic Acid work chemically?
This compound is a small unsaturated carboxylic acid with a vinyl group, which makes it highly reactive in free-radical polymerization and fully miscible with water, with a pKa around 4.25. In finished cosmetics it should appear only as trace residual free monomer after polymer manufacture, commonly controlled in the low ppm range, and it is stabilized during storage to limit self-polymerization.
Last updated 2026-05-13