Butyl acrylate is a monomer used to produce acrylate copolymers that serve as film-forming agents, binders, and texture enhancers in cosmetics and skincare formulations. In finished products it is present as part of polymerized copolymers rather than as a free monomer.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis | Uncommon | Reported mainly with residual free monomer; sensitization documented in occupational and nail-product exposures. |
Skin irritation | Uncommon | Mild irritation possible, primarily from the unpolymerized monomer rather than cured copolymers. |
Eye and mucous membrane irritation | Rare | Associated with monomer vapor or direct contact in manufacturing settings. |
Cross-reactivity with other acrylates | Rare | Individuals sensitized to acrylate compounds may react to butyl acrylate. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.