The oil palm "fruit" is unusual in that it yields two distinct oils: palm oil which is obtained from the pulp; and palm kernel oil, which is obtained from the kernel.
As a nut oil, kukui oil is high in linoleic acids and essential fatty acids vital for healthy skin. Easily absorbed by the skin, it is reported to benefit acne, sunburn, chapped skin, eczema and psoriasis. Use it for conditioning and cleansing.
Also a nut oil, macadamia oil has the highest levels of palmitoleic acid. Well known as a skin softener and restorer, it is used as an anti-aging ingredient in a number of cosmetic products. Palmitoleic acid is similar to the oil produced by the skin, the production of which declines as we age.