Shu Uemura Art of Hair's Izumi Tonic Thickening Serum is designed for fragile, fine hair. It strengthens, thickens, and moisturizes hair, while imparting a radiant shine thanks to its high concentration of precious rice water.
Izumi Tonic from Shu Uemura Art of Hair draws on the ancient Japanese "yu-su-ru" tradition of hair care, which involves soaking the hair in rice water.
Infused with rice water and ceramides, this thickening serum provides essential minerals and vitamins to help you achieve strong, thick, and shiny hair.
The rice water in this treatment is at its optimal concentration to coat the hair shaft and deliver all its benefits.
Its lightweight gel texture clings to the hair and visibly increases its diameter. Hair is 30 times stronger*. It feels softer and is protected against breakage, with split ends reduced by 91%*.
Izumi Tonic's premium rice is harvested from a sustainable rice paddy in Hyōgo, Japan, where it grows peacefully in a protected ecosystem.
Its bold, androgynous fragrance with floral notes is brought to life by premium ingredients. The citrus, woody, and musky notes evoke a sublime landscape of Japanese rice paddies. Its top notes center on bergamot and lemon infused with a heart of ylang-ylang. Its base notes combine sandalwood and rice powder. The scent of vanilla seals this unique fragrance with a desirable and comforting finishing touch.
The serum Izumi Tonic is ideal for fragile hair in need of strength, body, and texture.
*Product test: Izumi Tonic Shampoo + Mask + Serum
Benefits:
This formula is rich in nourishing rice water and ceramides.
Results:
With this thickening serum, your hair is strengthened, thicker, and protected from breakage. It’s moisturized and reveals a radiant shine.

After washing your hair with Izumi Tonic shampoo and conditioning it with a treatment or mask, apply the serum to damp hair, focusing on the mid-lengths and ends. Do not rinse. If you plan to blow-dry your hair, consider using Shu Uemura Art of Hair's Essence Absolue Oil for heat protection up to 230 degrees.
The ingredient lists for our brand’s products are updated regularly. Before using one of our products, we encourage you to read the ingredient list on the packaging to ensure that the ingredients are suitable for your personal use.
AQUA / WATER / EAU • GLYCERIN • PEG-40 HYDROGENATED CASTOR OIL • PHENOXYETHANOL • LACTIC ACID • XANTHAN GUM • SODIUM CHLORIDE • AMINOPROPYL TRIETHOXYSILANE • PEG-180 • CAPRYLYL GLYCOL • LINALOOL • ARGININE • GLUTAMIC ACID • LIMONENE • CETRIMONIUM CHLORIDE • SERINE • BUTYLENE GLYCOL • HYDROXYPROPYLTRIMONIUM HYDROLYZED WHEAT PROTEIN • CITRONELLOL • COUMARIN • 2-OLEAMIDO-1,3-OCTADECANEDIOL • ALPHA-ISOMETHYL IONONE • GERANIOL • BENZYL ALCOHOL • HYDROLYZED RICE EXTRACT • PARFUM / FRAGRANCE (F.I.L. N70013638/3).
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