KeraBio K31 Launch
2026-01-15 06:00:48

Revolutionary KeraBio™ K31: The First Biomimetic Bond Builder for Hair Care

Introducing KeraBio™ K31



Croda Japan, headquartered in Shinjuku, Tokyo, has officially launched a groundbreaking new ingredient in the hair care sector called KeraBio™ K31. This product is a biomimetic bond builder designed to restore and enhance hair strength at the molecular level by utilizing a peptide that mirrors the amino acid sequence found in human hair keratin, specifically K31. In an era where hair damage due to bleaching, coloring, and heat is prevalent, consumers are increasingly demanding solutions that strengthen their hair from within, rather than merely improving its surface feel.

The Bond Building Market: A Growing Demand for Internal Strength



The bond building category has shown remarkable growth, with an annual average growth rate of 9.3%. In fact, sales have increased by 34.3% year-on-year. As consumers become more demanding, there is a clear shift towards materials that can reconstruct hair from the inside based on concrete evidence. This is where KeraBio™ K31 comes into play, promising more than just superficial improvements.

KeraBio™ K31: Unmatched Strength and Technology



KeraBio™ K31 features a unique biomimetic peptide with a molecular weight of approximately 900 Da, which closely mimics the amino acid sequence of human hair keratin K31. This composition allows for a high affinity with the existing keratin in hair, enabling it to bind directly at a molecular level. The result is a reconstruction of strength not achievable by traditional bond builders.

  • - It penetrates deeply into the hair, binding to keratin within the cortex for long-lasting repair.
  • - It selectively and preferentially bonds with both keratin filament structures and amorphous matrix proteins.
  • - Users can expect a 100% improvement in hair strength, while significantly reducing the risk of breakage.
  • - KeraBio™ K31 offers a cumulative bond-building effect; the more it is used, the stronger the hair becomes.
  • - Ultimately, it resets hair structure to that of virgin hair.

Overview of KeraBio™ K31



Produced using Croda's innovative biotechnology, KeraBio™ K31 is a vegan-friendly biomimetic bond builder. It has been proven effective at both high and low concentrations for salon and retail applications, making it versatile for a variety of products. Some key features include:
  • - Product Name: KeraBio™ K31
  • - INCI Name: Aqua (and) Hydrolyzed sr-(Tripeptide-137 Hexapeptide-40 sh-Polypeptide-184 sh-Polypeptide-146)
  • - 99% Natural Origin: compliant with ISO 16128 standards
  • - Biodegradable: as per OECD 301F guidelines
  • - Phenoxyethanol-Free: safer for consumers
  • - EU/UK REACh Compliant: adheres to strict regulatory standards
  • - No Animal-Derived Ingredients: ensuring cruelty-free product development

Future Developments



KeraBio™ K31 aims to transcend traditional damage repair methods by fundamentally reconstructing the hair structure itself. Despite being in the pre-launch phase globally, it has garnered significant acclaim from multiple companies in Japan, leading to ongoing new product development and preliminary orders. Croda Japan is committed to advancing the bond building market to a new level with KeraBio™ K31, providing reliable, science-backed solutions for consumers struggling with hair damage.

About Croda Beauty



At Croda Beauty, our vision is to innovate beauty standards with our customers, pushing boundaries in cosmetic formulations. We focus on redefining beauty norms by developing cutting-edge ingredients that cater to modern demands. Leveraging our expertise in functional, active, and plant-derived ingredients, we aim to help brands shine within the global beauty industry.

For further information or inquiries, please visit our official website or contact us directly. Note: Please refrain from contacting us for advertising or sales inquiries.


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Topics Consumer Products & Retail)

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