Rainbow Research Henna Dark Brown Hair Color and Conditioner With Indigofera, 4 oz. each. - Rainbow Henna has no additives, chemicals, or pesticides. Rainbow Henna coats each hair shaft with color. Blends naturally. Fades gradually. Lasts 4-6 weeks. Smooths and seals the hair's cuticle for greater shine and body. Rainbow Research custom-tailored recipes can be used for special effects, covering grey, and improving texture. Note: Henna has no lightning action. Henna is the only natural alternative to chemical hair colorings that are controversial to health considerations and harsh on the hair. Red henna comes from small shrubs, called Lawsonia, that are native to the middle east, west Asia, and North Africa. The leaves are dried and then pulverized into a fine powder. We also use the plants: Indigofera, cassia obovate, marigold & chamomile flowers to make the different shades. Rainbow Research henna coats the outside of each strand of hair. The shade of henna is reflected through the hair while enhancing your hair's natural color. The cuticle is smoothed by henna's sealing action, giving hair a polished look by making the light reflect off providing shine. Regular use of henna can texturize the hair, giving it extra body this becomes more evident with each application. Recommended Use: Rainbow Henna may be applied on wet or dry hair, but it is important that the hair be clean and free of any hair sprays, gels, or conditioners. If you wish to shampoo first, towel dries your hair before applying. Pour Rainbow Henna Powder into a glass or plastic bowl. Use enough powder to cover all the hair it's being applied to.