The Vision Behind Kéralis: Rebuilding Hair from Within
The philosophy of Kéralis is simple yet profound: to create a world where salon-quality hair is no longer a luxury. Born from the evolving insights, techniques, and quality standards of professional salons, Kéralis products are meticulously designed for easy, at-home replication. This isn’t about temporarily masking damage; it’s about fundamentally rebuilding hair’s inner beauty and restoring its natural radiance through a “hair foundation approach” based on cutting-edge salon knowledge. The name Kéralis itself, a blend of “Kera” (keratin, making up 90% of hair) and the French word “lisse” (smooth/straight), embodies this mission of restoring beauty from the inside out.
Kéralis Noir Shampoo & Treatment: A Deep Dive into “Black” Repair
The Kéralis Noir Shampoo and Treatment are formulated with a powerful combination of low-molecular “active keratin,” hematin, and other professional-grade repair and moisturizing ingredients to reconstruct the hair’s foundation. They gently cleanse and intensively repair both the internal and external structures of damaged and wavy hair, leading to a smooth, manageable, and light-textured finish.
Mild Yet Effective Cleansing
The shampoo features a luxurious blend of taurine, amino acid, and betaine-based cleansing agents. This combination offers ideal cleansing power with low irritation, perfect for repairing the foundation of damaged hair and addressing damage-induced frizz.
The Multi-Molecular Keratin Approach
Kéralis utilizes 3-4 types of keratin to provide comprehensive repair from the hair’s core to its surface:
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Low-molecular “active keratin” (Shampoo & Treatment): This French-made keratin boasts a molecular weight of 300-700 Da, allowing it to penetrate and adhere to the hair’s internal structure. This is crucial as the “500 Da rule” suggests that molecules above this size struggle to pass through biological barriers like the cuticle. This low-molecular form is highly stable and structurally similar to natural hair proteins, ensuring deep repair.
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Medium-molecular keratin (Shampoo & Treatment): With a molecular weight of 1,000-10,000 Da, this keratin repairs the hair’s interior while also working on the surface.
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High-molecular “raw keratin” (Treatment only): Ranging from 30,000-60,000 Da, this high-molecular keratin forms a protective film on the hair surface, safeguarding the interior and adding firmness and resilience.
Hematin: Salon-Favorite for Damage Control
Hematin, a well-known repair ingredient in salon settings, is key for repairing hair and removing residual alkaline agents from color and perm treatments. By binding with hair proteins (keratin), hematin delivers moisture and a silky-smooth feel.
Reinforced Professional Repair Ingredients
Beyond keratin and hematin, Kéralis Noir incorporates other potent ingredients:
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Tostea®: A thio-succinic acid that corrects distorted internal hair structures, addressing frizz.
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Pellicer®: Rapidly penetrates hair within one minute to form a repair film.
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Lipidure®: Offers double the moisturizing power of hyaluronic acid, ensuring lasting hydration and improved surface texture.
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γ-Docosalactone: A heat-activated ingredient that works to improve frizz and waves.
Unique Characteristics of Kéralis Noir
Color: The shampoo and treatment have a unique brownish or moss-green hue. This distinctive color is a testament to the high concentration of hematin, a powerful repair ingredient.
Fragrance: Enjoy a fresh, translucent floral-fruity scent, meticulously selected by perfumers in Grasse, France, the renowned capital of perfume.
Upcoming: Kéralis Noir Hair Pack Serum
In March, ISSHI will release the Kéralis Noir Hair Pack Serum, an advanced acid-heat treatment for severely damaged hair. This special treatment combines low-molecular “active keratin” with acid-heat technology and professional repair ingredients to suppress frizz and waves. It aims to correct hair distortions caused by damage, leaving hair firm, resilient, and naturally straight. Further details will be announced in February.
Availability
Kéralis Noir Shampoo & Treatment (400mL / 400g)
Price: 2,700 JPY (excl. tax) / 2,970 JPY (incl. tax)
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January 19, 2026 (Mon): Pre-orders began on J.G.PLAZA Rakuten Ichiba and Amazon.
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February 11, 2026 (Wed): Early release at LOFT and J.G.PLAZA Rakuten Ichiba.
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February 27, 2026 (Fri): General release at various variety stores, Amazon, J.G.PLAZA Rakuten Ichiba, J.G.PLAZA, and other EC sites.
Kéralis Noir Hair Pack Serum
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February 13, 2026 (Fri): Pre-orders began on J.G.PLAZA Rakuten Ichiba and Amazon.
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March 8, 2026 (Sun): Early release at LOFT and J.G.PLAZA Rakuten Ichiba.
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March 22, 2026 (Sun): General release at various variety stores, drugstores, Amazon, J.G.PLAZA Rakuten Ichiba, J.G.PLAZA, and other EC sites.
Special Campaigns and Collaborations
To celebrate the launch, ISSHI is hosting an Instagram giveaway. “Imagine having hair so beautifully repaired, it feels like you’ve just stepped out of a high-end salon, every single day,” shared a representative about the brand’s excitement for this new line.
Instagram Present Campaign:
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Application Period: January 19, 2026 (Mon) – February 8, 2026 (Sun) 23:59 JST
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How to Apply: Follow ISSHI’s official Instagram (@isshi_official), like the campaign post, and leave a comment. Reposting the campaign post to your stories will increase your chances of winning!
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Prize: Three lucky winners will receive the new ISSHI Kéralis Noir Shampoo & Treatment set.
Fukagawa Onsen Tokiwayu Collaboration:
From February 13-15, 2026, a limited-time event at Fukagawa Onsen Tokiwayu will offer women a free trial of the new products before their official launch. Early sales will also be available at Tokiwayu. Details will be announced around February 11, coinciding with the early release. Collaborations in other prefectures are also in the planning stages.
Where to Find ISSHI Kéralis
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ISSHI Official Instagram: https://www.instagram.com/isshi_official/
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ISSHI Kéralis Noir Official Instagram: https://www.instagram.com/isshi_keralis_official/?hl=ja
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ISSHI Official X: https://twitter.com/ISSHI_official
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J.G.PLAZA Rakuten Ichiba Store: https://item.rakuten.co.jp/jgplaza/10000199/
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J.G.PLAZA Amazon Store: https://www.amazon.co.jp/dp/B0GF6BQDPP
This launch signifies a growing trend in the beauty industry: making high-performance, professional-level treatments accessible for daily home use. As Japanese beauty brands continue to innovate, it’s clear that the future of haircare will increasingly empower individuals to achieve their hair goals with sophisticated, science-backed solutions right from their own bathrooms, potentially transforming the global kawaii beauty landscape by making luxurious hair more attainable.
