Izumi Tonic Thickening Serum repair Adds density and dry hold

Adds density and dry hold without stickiness

swing and shine

Lightweight formula that never weighs hair down

Ideal for creating starchy

and beautifully balanced—perfectly primed for styling

Izumi Tonic Thickening Serum repair Adds density and dry holdInspired by the Japanese tradition of yu su ruthe ritual of strengthening hair through mindful carethe Izumi Tonic Thickening Serum is a lightweight, leave in treatment designed to visibly enhance density, body, and resilience. Infused with Izumi Tonic, inspired by rice water, this refined serum works to strengthen hair fiber while boosting the appearance of fullness and thickness from root to tip. The weightless formula absorbs instantly, leaving