Aveda Invati Men™ Scalp Revitalizer, instantly thickens your hair at the root, invigorates your scalp when massaged in. Formulated with amla, Aveda Invati Men™ Scalp Revitalizer instantly thickens hair at the root. With a potent blend of plant actives to help invigorate your scalp when massaged in. When used with invati men™ nourishing exfoliating shampoo, this 2-step system reduces hair loss.** In fact, 4 out of 5 men say their hair feels stronger & looks thicker. * From plants, non-petroleum minerals or water. ** Due to breakage in a trial of the invati men™ system after 12 weeks. † In a 12-week consumer test. Organic, Sustainable, Non-Toxic, Paraben Free, No Mineral Oil. Aveda is a PETA certified cruelty-free brand; they do not test any of their products on animals.