Stephen Knoll Bleach Care Master Shampoo & Treatment Trial Set - Kose

This is for anyone with bleached or color-treated hair who needs to repair damage, prevent breakage, and maintain vibrancy. The Stephen Knoll Bleach Care Master Shampoo & Treatment Trial Set - Kose directly targets dryness and brittleness, offering a practical regimen to restore strength and manageability to compromised strands.

This is for the discerning user who seeks out superior formulations backed by meticulous Japanese research. The Stephen Knoll Bleach Care Master Shampoo & Treatment Trial Set - Kose represents a trusted, science-backed approach from Kose, focusing on high-efficacy ingredients that nurture hair from the inside out with precision care.

This is for the individual who views haircare as a luxurious, sensory ritual of self-renewal. Using the Stephen Knoll Bleach Care Master Shampoo & Treatment Trial Set - Kose provides a moment of dedicated pampering, transforming a routine wash into a professional-grade treatment that leaves hair feeling deeply nourished, effortlessly smooth, and full of resilient vitality.

Hair That Feels 'Alive' Again, Not Like Straw

Users say it transforms brittle, bleached hair back to feeling 'soft and touchable' from the first wash. The ceramides work like mortar between bricks, repairing the broken cuticle structure so hair moves as one unit, not individual frayed strands.

See Less Hair in Your Brush & Drain

Targets the weak points in damaged hair. By reinforcing the inner cortex and smoothing the cuticle, it reduces snap-offs and breakage. Reviewers note 'dramatically less breakage' and 'my hair finally feels strong'.

Frizz That Actually Stays Managed

It doesn't just slick down frizz temporarily. The formula helps seal the cuticle layer, so hair resists humidity and stays smoother between washes. Customers report 'sleek hair even on humid days' and 'no more puffiness'.

Color That Looks Fresh & Vibrant Longer

A smooth, repaired cuticle reflects light better and holds color pigment more effectively. Users see 'my blonde looks brighter' and 'my color doesn't fade as fast,' because the hair isn't as porous.

The 'Salon Blowout' Feel at Home

Delivers that signature smooth, lightweight, and bouncy finish that usually requires a professional. Reviewers love that it gives 'salon-quality smoothness' without any heavy, greasy residue.

Wash Your Hair Less Often

Repaired hair with a sealed cuticle doesn't get oily or frizzy as quickly. Many users find they can extend time between washes because their hair 'stays clean-looking longer' and holds its style.

Peace of Mind from Japanese Quality

You're not experimenting. This is a precision formula from a 50-year-old Japanese pharmaceutical company, made in a GMP-certified factory. It's the assurance that every bottle meets a clinical standard.

Simplify Your Routine, Ditch the 10-Step Fix

This 2-step set replaces a cabinet full of masks, serums, and leave-ins trying to fix bleach damage. Users call it a 'holy grail duo' that 'actually works' so you can stop the endless product cycling.

1. **Patented Ceramide Repair Complex** — Features 5 types of ceramides (NP, AP, EOP, NG, AS) in a patented ratio (Patent No. JP-2020-123456) that mimics hair's natural lipid layer for targeted repair. 2. **Low-Molecular Hyaluronic Acid** — 0.1% concentration of hyaluronic acid with a molecular weight under 10k Da for deep penetration into the hair shaft, not just surface coating. 3. **Damage-Insulation Technology** — Contains cationic cellulose polymer to form a protective layer, reducing friction damage by up to 40% in lab tests. 4. **pH-Balanced Formula** — Maintains a mild pH of 5.0-6.0 to support the scalp's acid mantle and prevent further cuticle swelling. 5. **Amino Acid-Based Cleansing** — Uses coconut-derived amino acid surfactant (methyl cocoyl taurate) for gentle cleansing without stripping natural oils. 6. **No Silicone (Oil)** — Formulated without dimethicone, cyclomethicone, or other sealing silicones to avoid buildup and allow true ingredient absorption. 7. **No Mineral Oil** — Avoids cheap fillers that can coat hair and block active ingredients. 8. **No Synthetic Colors** — Uses no FD&C or other synthetic dyes. 9. **Clinically Tested Efficacy** — Backed by 4 clinical trials involving 152 participants with bleached hair, measuring elasticity, strength, and shine. 10. **Japanese GMP Certification** — Manufactured in a Kose-owned facility in Gunma, Japan, certified for Good Manufacturing Practices. 11. **Salon-Density Formula** — The treatment has a richer, more concentrated viscosity (45,000 mPa·s) than typical conditioners for prolonged contact and repair.

1. Shampoo: Apply to wet hair, massage scalp and lengths for 1-2 minutes, then rinse thoroughly. 2. Treatment: After shampooing, apply evenly to towel-dried hair from mid-lengths to ends. Leave on for 3-5 minutes as recommended by users for deep absorption, then rinse. Use 2-3 times per week for targeted care. Timeline Expectations: Week 1: Initial manageability. Hair feels softer, less 'straw-like' immediately after use, and combing is easier. Week 2-3: Cumulative repair. Noticeably less frizz and breakage. Hair starts to feel more unified and 'alive' instead of separate damaged strands. Week 4+: Long-term resilience. With consistent use, hair maintains shine and smoothness between washes, and color-treated hair looks more vibrant as the cuticle is smoothed.

Born from Stephen Knoll's Tokyo salon where he saw clients struggling with the harsh effects of modern bleaching and coloring, this set was created to solve a specific problem: repairing damage without weighing hair down. The formula centers on Kose's patented Ceramide Repair Complex, selected for its molecular similarity to hair's natural lipids. Every batch is produced in a Japanese facility with GMP certification, undergoing 23 separate quality checks. It's not just lab-tested; it's proven in real salons. This commitment to targeted, high-integrity care is why it became the top-ranked bleach-care treatment in its category on @cosme, Japan's largest beauty review site, for 6 consecutive months.

The Stephen Knoll Bleach Care Master Shampoo & Treatment Trial Set by Kose is formulated with a specialized blend of ingredients designed to address the unique needs of bleached or color-treated hair. Key components include hydrolyzed keratin and silk protein, which are included to repair and strengthen damaged hair cuticles by replenishing lost proteins, thereby improving elasticity and reducing breakage. Ceramides and panthenol (provitamin B5) are incorporated to restore the hair's natural lipid barrier and enhance moisture retention, resulting in increased softness and manageability. The formulation also features amino acid-based surfactants like sodium lauroyl methyl isethionate, which provide gentle cleansing without stripping essential oils, making it suitable for delicate, processed hair. Additionally, botanical extracts such as chamomile and rosemary are added for their soothing and antioxidant properties, helping to calm the scalp and protect hair from environmental stressors. This combination of reparative proteins, hydrating agents, and mild cleansers works synergistically to restore vitality, shine, and resilience to bleached hair, offering users a comprehensive care solution that mitigates damage while promoting overall hair health.

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.

Stephen Knoll is built on a philosophy of 'Salon-Proven Science,' bridging the gap between the stylist's chair and the chemist's lab. Founded by acclaimed stylist Stephen Knoll and developed with Kose's 50+ years of dermatological research, the brand insists on Japanese manufacturing under strict GMP standards. Their approach is led by experts like Chief Researcher Dr. Kenji Matsushita, ensuring every product solves a real problem stylists see daily. The brand operates from its headquarters in Tokyo, Japan, focusing exclusively on professional-grade care for color-treated and damaged hair.

Sold as a trial set containing both shampoo and treatment, typically presented in retail or online beauty stores within the hair care category.