Rooted in the Japanese tradition of yu-su-ru—the ritual of strengthening hair through care and discipline—the Izumi Tonic Strengthening Treatment System delivers intense fortification and visible resilience to fragile, weakened hair.
Powered by Izumi Tonic, inspired by rice water, this strengthening treatment penetrates deep into the hair fiber to reinforce structure, improve elasticity, and reduce breakage. Its rich yet refined formula restores strength without heaviness, leaving hair smoother, silkier, and noticeably more resistant with each use.
Designed as a weekly or as-needed ritual, this treatment works to repair the hair’s internal strength while refining the surface for enhanced softness and shine. Hair feels replenished, resilient, and beautifully renewed—stronger from root to tip.
Key Benefits:
Deeply strengthens and fortifies weakened hair
Helps reduce breakage and improve elasticity
Restores softness, smoothness, and shine
Reinforces hair fiber without weighing it down
Ideal for fragile, fine to medium hair
Usage
Cleanse hair by applying the Strengthening Shampoo System. Rinse carefully and proceed by using the Strengthening Conditioner System or Strengthening Treatment System. To complete the routine, apply the Thickening Serum on lengths.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
Shipping Information
Free shipping in Canada on orders $150+ and to the U.S. on orders $200+
Returns & exchanges
To learn more about our Return & Exchange Policy, click here.
Support?
Our customer support team is available and ready to assist with any questions or concerns. Whether it’s about your order, products, or just some haircare advice—we’ve got you covered.
