Surya Henna Hair Color is 100%, semi-permanent natural hair coloring and nourishing treatment for the hair. There are no peroxide, ammonia, resorcinol, PPD, parabens, or heavy metals. Guaranteed to cover gray. Revitalizes your hair with Indian and Brazilian herbs, fruits and honey that deeply moisturize while coloring. May be applied immediately after chemical process, without time intervals. Rinses out after 20 - 30 washings.