HydrationRepairShine

Izumi Thickening Serum

This lightweight gel-liquid product helps strengthen the lengths and instantly thickens the hair on its diameter to give it an overall denser appearance. Opting for this leave-in serum promises stronger and denser hair!

Rice Extract, Ceramides, and Arginine

Those who want thicker and visibly strengthened hair.

fluid serum

Fresh and woody

1. Ideally on damp hair, dispense the serum into the palms of your hands, 2 pumps for finer hair and up to 4 pumps for thicker hair.

2. Spread the product in your hands.

3. Run your hands through the lengths and ends to distribute the product.

Aqua / Water / Eau Glycerin / Peg-40 Hydrogenated Castor Oil / Phenoxyethanol / Lactic / Acid / / Butylene Glycol / Hydroxypropyltrimonium Hydrolyzed Wheat Protein / Citronellol / Coumarin / 2-Oleamido-1,3-Octadecanediol / Alpha-Isomethyl Ionone / Geraniol / Benzyl / Alcohol / Hydrolyzed Rice Extract / Parfum / Fragrance

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Izumi Thickening Serum Izumi Thickening Serum $63.00

Visible Density, Weightless Touch

Fine hair, but make it fuller. This thickening serum delivers instant density without heaviness, powered by arginine—an essential amino acid that helps reinforce the fiber and reduce breakage. Hair feels fuller, stronger, and naturally bouncy. Spray onto towel-dried hair, comb through, then air-dry or style as you like. With continued use, strands gain resilience and a healthy shine. The result: volume you can see and feel—light, lifted, and effortless.

Rice Extract

Hydrolyzed rice extract, rich in amino acids and peptides, penetrates the hair cortex to reinforce its internal structure. By increasing the hair’s tensile strength, it reduces breakage and split ends. The proteins in rice extract bind to the hair's keratin, filling in gaps and smoothing rough surfaces, which leads to increased elasticity and a more uniform texture.

Ceramides

Ceramides are the "cement" of the hair. These essential lipids restore the natural protective barrier, prevent dehydration, and protect against daily damage. They make hair stronger, more resistant to breakage, and visibly smoother to the touch.

Arginine

An amino acid with restorative and moisturizing properties. It supports collagen production, strengthens the skin barrier and improves circulation for a smoother, plumper and glowing complexion. A key active ingredient for revitalized, supple and better protected skin.

Le shampooing izumi tonic de Shu Uemura dans de la mousse.
Le shampooing izumi tonic de Shu Uemura dans de la mousse.
Le shampooing izumi tonic de Shu Uemura dans de la mousse.

FAQs

Visibly thickens fine and fragile hair.

No, leave-in application on towel-dried hair.

Yes, overlaps under styling products.

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