In our reference data, Glyceryl Undecylenate can feed Malassezia (fungal acne).
Glyceryl undecylenate is the glyceryl ester of undecylenic acid, used in cosmetic formulations as a skin-conditioning emollient and a mild antimicrobial agent that helps support product preservation. It is generally well tolerated and functions as a formulation/base ingredient rather than a treatment active.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Rare | Occasional transient redness or stinging, mainly in sensitive or compromised skin. |
Allergic contact dermatitis | Very rare | Isolated sensitization reports; undecylenic acid derivatives are infrequent allergens. |
Eye irritation | Rare | Possible upon direct contact with eye-area products. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.