Surya Henna is a semi-permanent hair dye, available in either cream or dry powder forms, that contains only natural, rare plant-based ingredients from India and Brazil. Unlike most coloring agents that contain heavy, harsh chemicals, such as hydrogen peroxide and ammonia, Surya Henna contains mild cleansers for particularly sensitive scalps. This hair treatment is mainly known for covering gray hairs, and some brands may contain shikakai, which promotes hair growth. Even hair that has been previously exposed to chemical treatments can be helped with application of Surya Henna

Test the product 24 hours before using Surya Henna in your hair. Apply Surya Henna to a small area on your forearm or leg and rinse off after 10 minutes. Wait 24 hours to see if an allergic skin reaction occurs, such as burning, itching and redness.

Shampoo and rinse your hair, preferably with an organic cleanser. If gloves are provided with the package, wear them. Apply Surya Henna cream to your roots and work the dye to the ends with your fingers. If using the dry powder form, mix with about 1/2 cup water in a small bowl (measurement varies depending on package instructions), or enough to form a smooth paste. Cover your hair thoroughly with the product.

Let the product sit in your hair between 20 and 45 minutes, or longer, depending on the product directions and the intensity of the color you prefer -- 20 minutes for the most subtle color alteration, 45 minutes for a dramatic change.