What it is: A unique combination of purifying Salicylic Acid, and Hydralight, an ingredient known for its extremely light moisturizing properties. What it does: Volumetry professional haircare volumizing products cleanse, densify, and weightlessly condition fine hair, providing lasting volume, body and an airy finish. What else you need to know: Discover the complete regimen from in-salon treatments to at-home hair care.