Pump up the volume with the Full Density Conditioner from Matrix Biolage. Fortified with a hydrating blend of Biotin, Zinc PCA and Gluco-Omega to deeply nourish and thicken each strand from root to tip, the weightless conditioning formula leaves you with full-bodied, luscious locks. Ideal for fine, flat and thin hair, its body-boosting blend reduces breakage and inspires healthy-looking, radiant hair with every use.