Henna masks are said to support hair growth and can give your hair a nice hint of color. Henna is a natural reddish dye that is often used in place of harsh chemical hair dyes. This mask also includes amla and brahmi powder which, according to traditional Ayurvedic medicine, are said to provide nourishment to the hair and reduce dandruff. You can find henna, amla, and brahmi powder at your local Indian supermarket or online.