Bertholletia Excelsa Seed Oil

Bertholletia excelsa seed oil is derived from the nuts of the Brazil nut tree, native to the Amazon rainforest. It is a nutrient-dense oil rich in fatty acids, particularly oleic and linoleic acid, which form the structural foundation of skin lipids.In skincare formulations, it functions as an emollient and skin conditioner, meaning it works to soften the skin surface and help maintain hydration by reducing transepidermal water loss.

The oil's fatty acids integrate into the skin's outermost layers, where they interact with your natural sebum and intercellular lipids. This creates a more cohesive barrier that slows water evaporation, keeping skin more hydrated and supple.Unlike occlusive ingredients that sit on the surface, Brazil nut oil is emollient—it works by conditioning the stratum corneum (the skin's outer layer) rather than forming a plastic wrap barrier.

Brazil nut oil is most effective when applied to damp skin, as this helps seal in hydration. A little goes a long way—start with 2-3 drops in a moisturiser or use it as a facial oil once or twice daily. It blends well with lighter serums and works particularly well in evening routines.

Generally well-tolerated by most skin types. Those with tree nut allergies should avoid it, as cross-reactivity is possible. Some users report that heavy plant oils can potentially feed fungal acne; if you are prone to this condition, patch test first or consult a dermatologist.