Tamanu oil is extracted from seeds that grow on a tropical evergreen called a tamanu nut tree. Tamanu oil and other parts of the tamanu nut tree have been used medicinally for hundreds of years by certain Asian, African, and Pacific Island cultures.
Historically, people believed in tamanu oil’s skin benefits. Today, you can find many anecdotal stories about the uses of tamanu oil for skin. Some studies suggest tamanu oil may prevent tumor-growth in cancer patients, treat vaginitis and help reduce symptoms in people with HIV.