Turn up the volume with this lightweight, thickening shampoo designed to cleanse and strengthen strand by strand. Developed with a team of doctors, this hair care must-have is formulated with BIOVOLUME 128 - a breakthrough ingredient proven to boost volume..Suitable for all hair types.Vegan and cruelty-free.Formulated without parabens and sulfates.6.4 oz.Wet hair, lather, and gently massage into the scalp.Distribute from root to tip.Leave for 1 minute, then rinse thoroughly