Reduce hair loss by 77%* with our latest advancement for thinning hair: the Invati Ultra Advanced™ 4-step system. The first step in this routine is a purifying hair follicle shampoo. Gentle and non-irritating to the scalp, the formula creates a light, frothy lather and rinses clean. It leaves hair shiny and, when paired with our light thickening conditioner, helps thicken strands. Dermatologist tested. 95% naturally derived**. Vegan. Leaping Bunny Approved. *Reduction in hair loss due to breakage, from repeat grooming test on tresses after use of Invati Ultra Advanced™ 4-step system of shampoo, conditioner, serum and leave-in. **Naturally derived per the ISO 16128 Standard. From plant, non-petroleum mineral sources, and/or water. Use: How to Use  Massage into wet hair and scalp. Rinse. Use as part of the invati ultra advanced™ 4-step system. AVEDA Invati Ultra Advanced Exfoliating Shampoo Light 500 ml