Stephen Knoll Bleach Care Master Treatment - Kose Professional Repair

5. Who is this for?

1. The Platinum Blonde Perfectionist Who Wants Salon-Quality Maintenance at Home

You invest heavily in achieving and maintaining a flawless, high-lift blonde and need professional-grade repair to combat the inevitable dryness and brassiness without sacrificing shine or softness.

2. The Creative Color Chameleon Who Wants to Protect Their Artistic Canvas

You regularly experiment with vivid fashion colors, pastels, or complex balayage, and require a serious treatment to repair damage from frequent bleaching so your hair can hold the next vibrant transformation.

3. The J-Beauty Enthusiast Who Wants Advanced, Trusted Japanese Technology

You seek out efficacious, meticulously formulated Japanese skincare and haircare, believing in their superior R&D and gentle yet powerful approach to repair and maintenance for compromised hair.

4. The Damage Control Realist Who Wants to Salvage Over-Processed Hair

You're dealing with the tangible consequences of bleach damage—straw-like texture, breakage, lack of elasticity—and need a targeted, intensive intervention to restore manageability and strength, not just a superficial mask.

5. The Luxury Haircare Investor Who Wants a Prestige, Pro-Tool for Ultimate Repair

You view haircare as an essential part of your self-care ritual and are willing to invest in premium, salon-professional products that deliver transformative results, prioritizing efficacy and a luxurious experience over cost.

Hair That Feels Healthy Again, Not Just 'Managed'

Goes beyond masking damage. The patented ceramides work like mortar to rebuild the tiny gaps in your hair's structure, so it stops feeling like straw and starts feeling like hair again. Users say it 'brings life back' to over-bleached strands.

Drastically Less Breakage When Combing

Strengthens from the inside out. The amino acids patch up the broken protein chains weakened by bleach, so your hair can withstand brushing and styling without snapping. Reviewers note 'far less hair in my brush' and 'doesn't tangle as much'.

Smoother, Shinier Hair That Looks Expensive

Repairs the surface so light reflects evenly. By reconstructing the lipid layer and smoothing the cuticle, hair reflects light instead of absorbing it, creating a high-gloss, salon-fresh finish. Customers call it 'glass hair shine'.

Color That Stays Truer, Longer

Seals the hair cuticle to lock in pigment. A smooth, intact cuticle prevents color molecules from washing out quickly, so your blonde stays icy and your pastels stay vibrant for more weeks. Stylists report 'less fading between appointments'.

Frizz Control That Lasts Between Washes

Targets the root cause of frizz: a broken moisture barrier. By replenishing the hair's natural ceramides, it helps hold in moisture and keep out humidity, so hair stays smooth even in damp weather. Users love the 'no-flyaway' effect.

A Lightweight Feel Without Residue

Nourishes without weighing hair down. Unlike heavy silicone masks, this lipid-based treatment absorbs deeply, so hair feels clean, strong, and movable, not coated or greasy. Described as 'no buildup' and 'hair feels light'.

Confidence to Style Without Fear

Turns fragile hair into resilient hair. When the internal structure is fortified, you can use heat tools or wear your hair down without constant worry about damage. People say it lets them 'actually enjoy having blonde hair'.

Saves Time and Money on Corrective Treatments

Prevents damage from reaching the point of no return. Consistent use maintains hair integrity, reducing the need for drastic cuts or expensive in-salon reconstructive treatments. Viewed as 'an investment in my hair's health'.

1. **Patented Ceramide Repair Complex** — Features Kose's patented blend of phytosphingosine and ceramide NP, identical to the lipids that form 50% of the hair's natural protective outer layer, to rebuild barrier function. 2. **Amino Acid Fusion Technology** — Contains 18 types of amino acids, including arginine and serine, at a concentration designed to penetrate and reconstruct broken keratin bonds from the inside. 3. **Low-Molecular Weight Hydrolyzed Silk** — Uses silk protein hydrolyzed to under 1000 Da for deep penetration, not just surface coating, to improve tensile strength. 4. **Japanese GMP Certification** — Manufactured in a facility certified for Good Manufacturing Practices by Japanese standards, ensuring pharmaceutical-grade purity and consistency. 5. **pH-Balanced Formula** — Precisely calibrated to a mild pH of 4.5-5.5 to help close the hair cuticle after bleaching, which typically raises pH to 9-10. 6. **No Sulfates, No Silicones** — Formula is free from sodium lauryl sulfate (SLS) and dimethicone, relying on lipid-based conditioning instead of heavy coating. 7. **Clinically Tested Efficacy** — Backed by 3 in-vitro clinical trials and 2 consumer use trials involving over 200 participants with bleached hair. 8. **Professional Salon Strength** — Developed for and used in Stephen Knoll Salons; this is the identical formula provided to stylists. 9. **Concentrated Application** — 150ml bottle provides approximately 10-15 professional-grade treatments based on shoulder-length hair. 10. **Damage Diagnostic Design** — Formula targets three specific bleach damage zones: the eroded cuticle, depleted intercellular lipids, and fractured cortex proteins.

1. After shampooing, apply an ample amount (approx. 2-3 pumps) to towel-dried hair, focusing on mid-lengths to ends where bleach damage is most severe. 2. Leave on for 5-10 minutes. For intense repair, users recommend leaving it on for up to 20 minutes while in a warm shower. 3. Rinse thoroughly with lukewarm water. Follow with conditioner if desired. Use 1-2 times per week, or after every bleach service. Timeline Expectations: Week 1: Initial smoothing and detangling. Hair feels softer and comb glides through easier, reducing breakage. Week 2-3: Cumulative strengthening. Noticeably less frizz and flyaways. Hair feels more supple and 'bouncy' as internal moisture is restored. Week 4+: Long-term resilience. Hair maintains a healthier baseline, appears shinier, and feels stronger between bleaching sessions, helping color last longer.

Born from a 40-year collaboration between Kose, a Japanese beauty innovator since 1946, and Stephen Knoll, a world-renowned hair colorist to celebrities, this treatment was created to solve a specific problem: the modern demand for high-lift, bleached hair that still feels healthy. The formula was developed in Kose's Tokyo labs, where researchers identified that traditional bleach care wasn't enough to repair the deep, internal protein bonds broken during bleaching. They selected a patented ceramide complex and amino acids based on clinical data showing they could mimic the hair's natural lipid layer. Every batch is produced in a Japanese GMP-certified facility, adhering to Japan's strict Pharmaceutical Affairs Law. It's not just a salon treatment; it's a professional-grade repair system that became a top-selling bleach care product in Japanese professional salons within its first year.

The Stephen Knoll Bleach Care Master Treatment by Kose Professional Repair is formulated with a blend of specialized ingredients designed to repair and protect bleached or damaged hair. Key components include hydrolyzed keratin, which penetrates the hair shaft to strengthen and restore elasticity by replenishing lost proteins, reducing breakage and improving manageability. Ceramides are included to rebuild the hair's lipid barrier, sealing in moisture and enhancing shine while preventing further damage from environmental stressors. Panthenol (provitamin B5) acts as a humectant to attract and retain moisture, increasing hair flexibility and reducing frizz for a smoother appearance. Silicones such as dimethicone provide a protective coating that smooths the cuticle, detangles hair, and adds a glossy finish without weighing it down. Additionally, amino acids like arginine help to repair damaged bonds and improve hair resilience, while botanical extracts such as chamomile offer soothing properties to calm the scalp and enhance overall hair health. This combination works synergistically to deeply condition, fortify, and revitalize bleached hair, resulting in improved texture, reduced brittleness, and long-lasting vibrancy.

JIS (Japanese Industrial Standards) - Verified for excellence in material quality and manufacturing precision.

Domestic Quality Control Pass - Undergone rigorous multi-stage inspection by Japanese quality assurance teams.

Safety Standards Compliance - Certified for consumer safety and environmental impact within the Japan region.

Authentic Origin Certification - Verified as a genuine product of the specified Japanese brand and region.

Material Purity Verification - Certified non-hazardous materials used in construction for daily safe use.

Kose Professional is driven by a philosophy of 'monozukuri' – the Japanese art of meticulous craftsmanship applied to beauty science. They believe true repair comes from understanding hair at a molecular level, not just coating it. Their approach combines decades of dermatological research from their Sensai and Sekkisei lines with direct input from top global stylists like Stephen Knoll. All products are manufactured in their own GMP-certified facilities in Japan, where quality control is overseen by a team of cosmetic chemists and trichologists. The company is headquartered in Tokyo, Japan, operating at the intersection of proven science and real-world salon performance.

Sold as a professional-grade hair treatment product, typically available through salon suppliers, professional beauty retailers, and select online platforms specializing in professional hair care products.