Transform fine, limp hair into a voluminous masterpiece with Biolage Volume Boost Volumizing Spray. This innovative formula, powered by micro-filtered soy protein and polymers, instantly expands hair's volume by increasing inter-fiber space, creating lasting fullness and lift from root to tip. Experience the weightless hold that maintains natural movement, allowing you to achieve bouncy, touchable styles without stiffness. Free of parabens, mineral oil, silicones, and colorants, Volume Boost respects your hair's health while delivering dramatic volume.