Aleurites Moluccanus Seed Oil

Aleurites moluccanus seed oil, commonly known as kukui nut oil, is a lightweight botanical oil extracted from the seeds of the kukui tree native to Southeast Asia. It is rich in linoleic acid and other polyunsaturated fatty acids, which are key components of skin's natural lipid barrier.

In skincare products, it functions as a skin conditioning agent—meaning it helps soften and smooth the skin surface whilst providing emollient properties. Its relatively fast absorption rate makes it suitable for formulations where a non-greasy feel is desired.

The oil's effectiveness stems from its fatty acid profile, particularly its high linoleic acid content. These fatty acids penetrate the outer skin layers and integrate into the skin's natural lipid matrix, helping to restore and maintain barrier function.

Because it absorbs relatively quickly compared to heavier oils, it conditions the skin without creating an occlusive layer that might feel greasy. This makes it useful in formulations designed for those who want the benefits of plant oils without a visible shine.

This ingredient works well in serums, light moisturisers, and facial oils aimed at barrier support. As with any plant oil, use as directed by the product formulation. If you are prone to fungal acne (malassezia sensitivity), patch test first, as some individuals find plant oils can exacerbate this condition. It can be used daily as part of a skincare routine, though frequency depends on your skin type and the product format.