Amika’s Big Hit Volumizing Shampoo boosts fine to medium hair with up to 2.3x more volume, creating visible root lift and lasting body while keeping strands light, soft, and full of natural movement. Powered by sea buckthorn superfruit, energizing caffeine, and glycerin, it builds texture and thickness, enhances shine, and helps tame frizz for hair that looks fuller and healthier without added weight.This vegan certified, sulfate- and paraben-free formula supports weightless moisture and hydration, leaving hair resilient, easy to style, and smooth to the touch. Packaged in a bottle made from 90% post-consumer recycled plastic, it delivers salon-level lift with a simpler, more planet-minded routine. Size:33.8oz