Full Density Densifying Spray for thin hair, infused with biotin, leaves hair healthier-looking and fuller-feeling after just one use.* This leave-in treatment leaves hair feeling softer and 84% thicker without feeling weighed down.** Paraben-free, Silicone-free, Mineral-oil free and colorant free. Featuring Biolage’s iconic AromaScience™ fragrance. Suitable for color-treated hair.