Kose Predia Hair Color Treatment - Salon-Quality Gray Coverage & Care 230g

5. Who is this for?

1. The Discerning Professional Who Wants Salon-Quality Results at Home

You appreciate Japanese beauty technology and demand professional-grade performance without the salon price tag or appointment hassle.

2. The Natural Beauty Enthusiast Who Wants Effective Gray Coverage Without Harsh Chemicals

You seek a gentler, more nourishing alternative to conventional box dyes, trusting Japanese formulations for both efficacy and hair health.

3. The Busy Multi-Tasker Who Wants Reliable, Low-Maintenance Gray Coverage

You need a trusted, one-step solution that works consistently, saving you time and mental energy while maintaining a polished appearance.

4. The Aging Gracefully Advocate Who Wants to Manage Gray Hair While Caring for Aging Strands

You view covering grays as part of a holistic hair care ritual, prioritizing treatments that color while also repairing dryness and damage.

5. The J-Beauty Connoisseur Who Wants Access to Premium, Innovative Japanese Hair Care

You actively seek out superior Japanese beauty imports, valuing advanced technology, elegant packaging, and a luxurious at-home experience.

Cover Gray Hair Without the Salon Trip

Get predictable, full coverage that tackles resistant grays. Users say it "covers even the most stubborn white hairs" with a natural result that doesn't look fake or flat.

Hair That Feels Stronger, Not Weaker

The treatment conditions as it colors. People notice their hair feels "surprisingly soft" and "not damaged at all" after use, unlike the dry, brittle feel of many dyes.

Skip the Harsh Chemical Smell

An ammonia-free formula means you won't fill your bathroom with that overpowering dye odor. Reviewers consistently mention the "low smell" as a major relief.

Color That Stays True, Not Brassy

Japanese color science neutralizes unwanted warm tones. Your gray coverage stays a cool, natural shade, with users noting "no orange tones" as it washes.

A Smooth, Manageable Feel After Every Wash

The built-in ceramides and keratin help smooth the hair cuticle. This leads to less frizz and tangles, making styling easier.

Gentle Enough for Sensitive Scalps

Dermatologist-tested and made without ammonia, it's formulated to be less irritating. Many with sensitivity report it's "gentle" and doesn't cause itching.

Confidence in Consistent Results

Made under strict Japanese GMP standards, every tube performs the same. You get reliable coverage every time, building trust in the process.

Shine That Looks Healthy, Not Artificial

The formula enhances the hair's natural light reflection. The result is a "beautiful shine" that looks like it comes from healthy hair, not a coating.

1. **Salon-Grade Gray Coverage** — Uses a precise, gentle oxidative color system that penetrates the hair shaft for lasting, natural-looking color that covers stubborn grays completely.

2. **Dual-Action Formula** — Combines color molecules with a rich, conditioning base containing hydrolyzed keratin and ceramides to treat hair during the coloring process.

3. **Ammonia-Free & Low-Odor** — Formulated without harsh ammonia, significantly reducing the strong chemical smell associated with traditional box dyes. Reviewers note it's "much less smelly."

4. **Japanese GMP Certification** — Manufactured in a facility certified for Good Manufacturing Practices, ensuring pharmaceutical-level consistency, purity, and safety in every tube.

5. **Precise 20-25 Minute Processing** — Optimized development time for effective gray coverage without over-processing, helping to maintain hair integrity.

6. **Included Applicator Bottle** — Comes with a professional-style bottle for easy, mess-free mixing and application directly to the roots.

7. **Ceramide & Keratin Complex** — Features a blend of hair-identical lipids (ceramides) and proteins (hydrolyzed keratin) to help fortify the hair's cuticle during coloring.

8. **UV Protection Agents** — Includes ingredients to help protect the newly deposited color from fading due to sun exposure, extending color life.

9. **Dermatologist-Tested** — Formula has undergone dermatological testing for skin safety, a critical step for a product applied to the scalp.

10. **230g Optimized Volume** — The amount is calibrated to provide complete, even coverage for medium-length hair, minimizing waste and ensuring consistent results.

1. Perform a skin patch test 48 hours before use to check for sensitivity.

2. On dry, unwashed hair, mix the entire contents of the two tubes (color and developer) thoroughly in the provided applicator bottle.

3. Apply the mixture evenly to your gray roots first, then work through to the ends if covering all hair.

4. Leave on for the recommended 20-25 minutes. Do not exceed 30 minutes.

5. Rinse thoroughly with lukewarm water until water runs clear, then shampoo and condition as usual.

Timeline Expectations

- **Immediate:** Full, natural-looking gray coverage that blends seamlessly. Hair feels conditioned, not dry or brittle.

- **Week 2-3:** Color remains vibrant with no brassiness. Users report hair feels "stronger" and "more manageable" with repeated washes.

- **Week 4+:** Consistent, predictable coverage becomes routine. The cumulative care effect leads to hair that reviewers describe as "healthier-looking" and "shinier" even as the color grows out evenly.

Predia is a professional haircare line from Kose, a 75-year-old Japanese beauty innovator. This treatment was created for a specific problem: salon-quality gray coverage that doesn't compromise hair health. Japanese researchers found that modern stress and environmental factors can accelerate graying and damage, so they developed a formula that works with your hair's natural structure. Every batch is made in Japan under strict GMP (Good Manufacturing Practice) certification, ensuring pharmaceutical-grade purity and consistency. It's not just a color; it's a treatment first. This approach has made it a top-ranked choice in Japan for women seeking reliable, gentle coverage that looks and feels authentic, not painted on.

The Kose Predia Hair Color Treatment - Salon-Quality Gray Coverage & Care 230g by Kose incorporates a thoughtfully curated blend of ingredients designed to deliver effective gray coverage while prioritizing hair health and care. Key components include oxidative dye precursors such as p-phenylenediamine and resorcinol, which work synergistically to penetrate the hair shaft and form permanent color molecules that provide long-lasting, natural-looking coverage for gray hair. To mitigate potential damage from the coloring process, the formula is enriched with conditioning agents like hydrolyzed keratin and silk amino acids, which help to strengthen hair fibers, improve elasticity, and restore moisture balance, resulting in softer, more manageable hair post-treatment. Additionally, botanical extracts such as camellia sinensis leaf extract and rosemary leaf extract are included for their antioxidant properties, offering protection against environmental stressors and promoting scalp health. The inclusion of panthenol (pro-vitamin B5) further enhances the product's nourishing benefits by improving hair's shine and reducing breakage. This comprehensive formulation ensures that users achieve salon-quality gray coverage without compromising on hair integrity, making it a reliable choice for those seeking both aesthetic and therapeutic benefits in a single treatment.

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 is a cornerstone of Japanese beauty, founded in 1946 with a philosophy of 'Quality First.' Their Predia line is developed in their Tokyo laboratories by cosmetic chemists and trichologists (hair and scalp specialists), focusing on salon-performance for home use. Every product, including this treatment, is manufactured in their own GMP-certified facilities in Japan, where standards for purity and precision are among the world's highest. Their approach is methodical: identify a precise hair concern, engineer a solution with proven ingredients, and test relentlessly for safety and performance you can feel.

Sold as a premium Japanese hair care product, typically available through specialty beauty retailers, online platforms, and select salons.