The leaves are ground up and when mixed with water the tannins in the plant produce a dye pigment that is very similar to your hair protein making it ideal for hair colour, protection, strengthening and beautifying the hair! Henna is antifungal and antibacterial and is good for you and your hair, so you can apply henna as often as you like! With every henna application the colour deepens and becomes richer. You will experience beautiful hair with henna.