In our reference data, Bertholletia Excelsa Seed Oil can feed Malassezia (fungal acne).
Bertholletia Excelsa Seed Oil (Brazil nut oil) is a plant-derived oil rich in unsaturated fatty acids and selenium, used in skincare to soften, condition, and provide a protective emollient layer. It is valued for its moisturizing properties and as a carrier oil in formulations.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis | Rare | Tree nut-derived oil; individuals with nut allergies may react, though refined oils contain little protein. |
Skin irritation or redness | Rare | Possible in sensitive individuals or with impure/oxidized oil. |
Comedogenicity (clogged pores) | Uncommon | May contribute to breakouts in acne-prone skin due to its occlusive fatty acid content. |
Anaphylaxis | Very rare | Theoretical risk in highly nut-allergic individuals if residual proteins remain. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.