Ouai Thin Shampoo for Fuller hair

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Fuller, Thicker Hair Starts HereMeet the Ouai Thickening Shampoo — your secret weapon for voluminous, body-rich hair. Formulated with marshmallow root and chia seed oil, this light weight yet powerful shampoo gently cleanses while adding serious lift and fullness to fine, flat, or thinning strands. Boosts volume and thickness from root to tip Strengthens and nourishes with chia seed oil Softens and smooths with marshmallow root extract Safe for color-treated hair Free of parabens and sulfates Lather up and feel the difference — hair that looks and feels noticeably thicker, shinier, and more alive with every wash. Show more