Castoryl maleate is an ester derived from castor oil used in cosmetic formulations as an emollient and skin-conditioning agent that improves spreadability and provides a smooth feel. It functions as a base/texture ingredient rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Rare | Mild redness or stinging possible in sensitive individuals. |
Allergic contact dermatitis | Rare | Sensitization to castor-derived esters has been reported infrequently. |
Comedogenicity | Uncommon | Castor-oil derivatives may contribute to pore congestion in acne-prone skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.