DOO GRO Stimulating Growth Oil Helps relieve itchy scalp, stops flaking and soothes dry, brittle hair. Its special blend of botanical oils, vitamin A & E and pure herbs nourishes the hair follicles while at the same time strengthens and repairs hair that is damaged or abused. DOO GRO Stimulating Growth Oil is extra light, and is safe to use on all hair types of hair including color treated and relaxed.