Shu Uemura Izumi Tonic Thickening Serum

Shu Uemura Izumi Tonic Thickening Serum

Izumi Tonic Thickening Serum is a leave-in thickening serum for fine, weakened, and breakage-prone hair, inspired by the Japanese yu-su-ru ritual — the tradition of caring for hair with rice water. Designed to visibly increase length density, strengthen the hair fiber, and improve overall hair quality without weighing it down.

The lightweight, concentrated formula with rice water and ceramides helps reinforce the hair structure, improve elasticity, and give strands a fuller, more substantial look. The serum instantly smooths lengths, makes detangling easier, and leaves hair softer and more manageable while preserving natural volume.

Ideal for fine and weakened hair that lacks density, strength, and a polished finish in everyday care.

How it works

The serum delivers multi-benefit action:

• visibly thickens lengths and enhances the feel of fuller hair
• strengthens the hair fiber and helps reduce breakage
• smooths the cuticle and improves hair texture
• boosts elasticity and softness
• helps protect lengths from daily external aggressors

With regular use, hair looks denser, smoother, and noticeably stronger.

Key benefits

1. Thickens lengths without a heavy feel
2. Helps reduce breakage and improve elasticity
3. Smooths and improves manageability
4. Lightweight leave-in texture
5. Formula with rice water and ceramides
6. Suitable for all hair types, especially fine and weakened hair

How to use

Apply a small amount to clean damp or dry hair, distributing through lengths and ends. Do not rinse. Use daily or before styling for extra thickening, smoothness, and protection.

If you’d like, I can also prepare a summary right away or format an Izumi Tonic shampoo description so the line is fully covered.

Ingredients: 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