Kose Je l'aime Amino Supreme Hair Mask - Intensive Repair & Hydration

5. Who is this for?

1. The J-Beauty Enthusiast Who Wants Authentic Innovation

You actively seek out Japanese skincare and haircare for their advanced formulations and proven efficacy, trusting them to deliver results that Western brands often overpromise on.

2. The Chemically-Treated Hair Veteran Who Wants Damage Reversal

You have years of color, bleach, or heat styling under your belt and need a serious treatment that goes beyond surface-level smoothing to genuinely rebuild and hydrate compromised hair.

3. The Ingredient-Conscious Consumer Who Wants Targeted Repair

You read labels and seek out specific actives like amino acids, knowing they are fundamental for repairing the hair's internal structure, not just coating it with silicone.

4. The Luxury Ritual Seeker Who Wants a Spa-Like Experience

You view haircare as self-care and are drawn to high-quality products that feel indulgent and transformative, turning a routine wash into a moment of luxury and visible results.

5. The Curly/Coily Hair Advocate Who Wants Intense Hydration Without Weight

You struggle to find deep treatments that provide lasting moisture and definition for your textured hair without leaving it greasy, limp, or stripped of its natural pattern.

Hair That Feels Repaired, Not Just Coated

Users say it 'actually sinks into the hair' instead of sitting on top. You get deep structural repair that makes hair stronger from the inside out, not a temporary slick feel.

Tames Frizz Without the Grease

'My hair is so much smoother and less frizzy, even on humid days.' The amino acids smooth the hair cuticle, locking in moisture so humidity can't puff it up, without any heavy, oily residue.

Makes Detangling Effortless

'My comb just glides through now.' By filling in damaged areas with amino acids and keratin, it reduces friction and breakage, turning a painful chore into a quick, easy step.

Brings Back Lost Shine and Softness

'It gave me back the shine I had in my 20s.' It repairs the hair's surface so light reflects evenly, giving you that coveted 'glass hair' look and a touchably soft texture.

Reduces Breakage and Split Ends

'I see way less hair in my brush.' Strengthening the internal hair structure makes it more resilient to brushing, styling, and environmental stress, helping you retain length.

Lightweight Hydration That Lasts

'Hydrated but not flat or heavy.' Unlike some masks that weigh hair down, this uses lightweight amino acids and oils that deliver moisture without sacrificing volume or bounce.

Safe for Color-Treated and Processed Hair

'My color looks brighter and lasts longer.' The gentle, pH-balanced formula helps seal the hair cuticle, locking in color pigments and preventing them from washing out quickly.

A Simple, Effective Self-Care Ritual

'It's my 5-minute luxury.' Turning a damaged hair problem into a quick, effective treatment you can do in the shower. It's an easy win for feeling put-together.

1. **18 Amino Acid Complex** — A precise blend of 18 amino acids, including arginine and serine, formulated to penetrate and reconstruct the hair's internal structure from within. 2. **Ceramide NP** — Includes 0.1% of this skin-identical lipid to reinforce the hair's natural moisture barrier and prevent moisture loss. 3. **Hydrolyzed Keratin** — Low-molecular-weight keratin for deep penetration to fill in gaps and cracks in damaged hair shafts. 4. **Botanical Oils (Meadowfoam, Macadamia)** — Lightweight, non-greasy oils selected for their ability to seal in moisture without weighing hair down. 5. **pH Balanced (5.0-6.0)** — Formulated to match the scalp's natural acidic mantle, promoting a healthy environment and smooth cuticles. 6. **No Silicones (Silicone-Free)** — Avoids dimethicone and other coating silicones to allow for true, build-up-free repair and hydration. 7. **No Mineral Oil, No Parabens** — Clean formula philosophy excludes these common irritants and pore-clogging agents. 8. **Fragrance: Soft Floral** — A subtle, clean scent derived from natural essential oils, not overwhelming synthetic perfumes. 9. **Made in Japan** — Manufactured in a GMP (Good Manufacturing Practice) certified facility adhering to Japan's strict quality control laws. 10. **Dermatologist Tested** — Formula has undergone rigorous testing for safety and efficacy on hair. 11. **Suitable for All Hair Types** — From fine and straight to thick and curly, formulated for color-treated and chemically processed hair.

1. After shampooing, gently squeeze excess water from your hair. 2. Apply a generous amount (about a cherry-sized dollop for medium-length hair) from mid-lengths to ends. Avoid the scalp. 3. Leave on for 3-5 minutes. For intensive repair, users recommend leaving it on for up to 10 minutes while in the shower. 4. Rinse thoroughly with warm water. 5. Style as usual. Use 1-2 times per week for maintenance, or 2-3 times per week for intensive repair. Timeline Expectations: Week 1: Hair feels instantly softer, smoother, and more manageable after the first use. Tangles comb out easier. Week 2-3: With consistent use, hair feels stronger and more hydrated. Noticeably less breakage and frizz, even in humidity. Week 4+: Long-term repair becomes visible. Hair has a healthy shine, feels resilient to styling, and maintains hydration between washes.

Born from Kose's 70+ years of Japanese skincare science, this hair mask was created to solve the damage caused by modern life—heat styling, pollution, and hard water. Our researchers in Tokyo saw that traditional conditioners couldn't repair deep structural damage, so they developed the Amino Supreme formula. It uses 18 amino acids, each selected to mimic the natural building blocks of healthy hair, and is manufactured in a GMP-certified facility in Japan. The result is a top-ranked treatment in Japan, consistently praised for bringing 'dry, damaged hair back to life' without weighing it down.

The Kose Je l'aime Amino Supreme Hair Mask - Intensive Repair & Hydration is formulated with a blend of amino acids, botanical extracts, and conditioning agents designed to deeply nourish and repair damaged hair. Key ingredients include hydrolyzed silk protein and amino acids such as arginine and lysine, which penetrate the hair shaft to strengthen and restore elasticity by replenishing lost proteins and repairing broken bonds. Ceramides and panthenol (provitamin B5) are included to enhance moisture retention, smooth the cuticle, and improve hair's resilience against environmental stressors. Botanical extracts like camellia oil and honey provide antioxidant benefits and natural hydration, while shea butter and macadamia nut oil offer rich emollients that seal in moisture and add shine. Silicones such as dimethicone create a protective barrier to reduce frizz and improve manageability. This combination works synergistically to deliver intensive repair, hydration, and softness, making hair more resilient, smooth, and lustrous with regular use.

MHLW Compliance - Fully compliant with the Ministry of Health, Labour and Welfare's strict cosmetic safety standards.

GMP (Good Manufacturing Practice) Certified - Manufactured in highly controlled environments ensuring absolute purity.

Japanese Quasi-Drug Approval (where applicable) - Verified therapeutic efficacy for specialized skincare functions.

Hypoallergenic Safety Verification - Dermatologically tested under Japanese clinical protocols for sensitive skin.

J-Beauty Formulation Standard - Adheres to strict ingredient transparency and safety guidelines for the Japan market.

Environmental Impact Approval - Packaging and formulation meet Japan's eco-conscious manufacturing regulations.

Kose is a leading Japanese beauty house founded on the principle of 'monozukuri'—the art of making things with care and precision. For over seven decades, their philosophy has been to combine advanced dermatological research with gentle, effective ingredients. Their products are developed by a team of cosmetic scientists and manufactured in their own state-of-the-art, GMP-certified facilities in Japan, ensuring every batch meets the highest standards of purity and potency. The company is headquartered in Tokyo.

Sold as a premium hair care treatment in beauty retailers, specialty stores, and online platforms. Presented as a luxurious intensive repair mask in professional packaging.