Izumi Tonic Thickening Serum


Thickening rice water serum for all types of fragile hair.


This thickening serum hydrates and strengthens fragile hair. Formulated with rice water to strengthen and repair, izumi tonic serum leaves hair 30x stronger* and reduces split ends by up to 91%*. This leave in treatment serum is powered by ceramides, perfect to thicken and increase hair diameter for hair lacking volume. Apply after styling to add texture, thickness, shine and hold.

Inspired by a japanese haircare tradition, the izumi tonic range is formulated with rice water, known to restore damage, prevent future breakage, and reveal healthier & smoother hair. we source our rice water from hyogo, japan in an eco-friendly manner.


  • increases hair diameter
  • leaves hair 30x stronger*
  • thickens hair
  • reduces split ends up to 91%*
  • softens & smooths
  • adds shine

*system of shampoo, treatment & serum vs. non-conditioning shampoo



Japanese-sourced Rice Water

High quality rice extracts made of specific rice protein by unique enzyme method, rich in amino acids, b vitamins, vitamin e, minerals, antioxidants, renown for restoring damaged cells and overall permeability, moisture and elasticity to hair.


Invigorating yet delicate, the izumi tonic scent opens with vibrant citrus top notes and combines with a fresh woody musk fragrance resembling a breathtaking rice field.


How to Use Izumi Tonic Thickening Serum:

After using izumi tonic shampoo and izumi tonic conditioner or mask, apply from lengths to ends after blow drying.

Additional information

Weight 3.04 oz