L'Oreal Paris Volume Filler Densifying Gelee is a density building hair treatment that instantly melts into hair upon application and provides instant volume after blow-drying. Lightweight. Airy. Non-greasy. No weigh down. Paired with the L'Oreal Volume Filler Shampoo and Conditioner this system penetrates the hair fiber from root to tip for healthier looking, full hair. It works to create texture from within to generate a thicker feel, root lift, and lasting volume over time. Ideal for fine, thin hair types.