A plant commonly found in Africa and South Asia. For centuries, henna has been a popular folk remedy for a variety of illnesses, and henna dye is often used to create temporary tattoos.

There is evidence that henna acts as an antibacterial and anti-fungal ingredient. It may also reduce inflammation, and it is generally safe when applied to the skin. However, some people have allergies to the plant, which can cause hives, irritation, and other symptoms. Henna is not safe for internal use.

Women should not use massage oils or other products with henna when pregnant or breastfeeding.