DOO GRO Tingling Growth Shampoo 8ozDOO GRO Tingling Growth Shampoo with dandruff control helps promote strong, healthy, growing hair. Its unique formula gently cleanses and conditions hair, while it adds strength and returns hair to its natural healthy condition. DOO GRO Tingling Growth Shampoo with dandruff control moisturizes hair and scalp while controlling dandruff. Its natural ingredients also control dry, flaky and itchy scalps. Safe to use on hair that is relaxed, curled, natural, dry, overprocessed, breaking or damaged.