What does buriti oil actually do in this hand cream, and why is 40% considered significant?

Buriti fruit oil, pressed from the fruit of Mauritia flexuosa (a South American palm sometimes called the "tree of life"), is included at 40% of the active complex in this cream — a notably high proportion for a key ingredient, which is why the formula is positioned as nourishing rather than a light lotion.

The oil's value for hand care comes from its natural composition:

• Oleic acid — a fatty acid compatible with the skin's own lipids. It helps replenish the lipid layer on the surface of the hands, so moisture escapes less easily. This matters for hands specifically, because frequent contact with water and soap keeps washing that layer away.
• Vitamin E and carotenoids (including beta-carotene) — antioxidants that help protect the skin from environmental stress, the kind that can leave hands looking dull and feeling depleted after cold, wind or dry indoor air.

In terms of feel, buriti oil is known in hand cosmetics for combining a dense, nourishing character with good spreadability. In practice that means the cream can feel rich enough for dry, rough or tight skin, yet still absorb without leaving a heavily greasy film — you should not need to wait long before typing or handling paper after applying it.