In our reference data, Oleic Acid can feed Malassezia (fungal acne).
Oleic acid is a monounsaturated omega-9 fatty acid used in skincare as an emollient and skin-conditioning agent that softens skin and can enhance the penetration of other compounds. It is naturally present in many plant oils and in human sebum.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Common | Can disrupt the skin barrier and cause irritation, particularly at higher concentrations or on compromised skin. |
Comedogenicity / acne aggravation | Common | Considered relatively comedogenic and may worsen acne-prone or oily skin. |
Barrier disruption | Common | Increases transepidermal water loss by perturbing the stratum corneum lipid structure. |
Contact dermatitis | Uncommon | Erythema, itching, or burning reported in sensitive individuals. |
Allergic contact sensitization | Rare | True allergy is infrequent but documented in patch-test studies. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.