Croda announces registered name for its innovative non-animal keratin for hair repair.

Advanced bond builder KeraBio™ K31 developed through extensive collaboration across Croda

14 July 2025: Croda International Plc (“Croda”), the company that uses smart science to create high-performance ingredients and solutions that improve lives, is pleased to confirm the official INCI (International Nomenclature Cosmetic Ingredient) name for its advanced hair repair ingredient, KeraBio K31, Hydrolysed sr-(Tripeptide-137 Hexapeptide-40 sh-Polypeptide-184 sh-Polypeptide-146).

KeraBio K31 is a novel, bio-based product which is the next step up in hair repair outperforming the benefits of animal-derived keratin. The ingredient, which is designed to repair and strengthen hair, sets a new standard in hair care performance and innovation for the professional hair salon market. The biotech-powered biomimetic bond builder delivers a vegan keratin recharge at the molecular level, elevating hair strength beyond repair. 

This pioneering innovation is a great example of close cooperation across Croda’s global R&D, biotech, operations and marketing teams, supported by key external scientific contributors:

  • The team at our Biotechnology Research and Technology site, Daresbury, UK, led the creation of the novel keratin structure that met the performance and sustainability specifications. 
  • Additional insights about KeraBio K31’s unique mode of action, particularly its role in forming internal hair bonds were developed by the UK R&D team strengthened by data generated in collaboration with trusted external partners, adding depth to our understanding of this advanced technology.
  • In parallel, our R&D team in the USA delivered robust in-vitro performance data, demonstrating KeraBio K31’s ability to significantly improve hair strength and resilience, validating its benefits in real-world application.
  • Supporting the scale-up process, our Process Innovation team brought critical expertise to ensure KeraBio K31 was production-ready at a commercial scale, preserving its integrity and performance in formulation.

Sandra Breene, President of Consumer Care commented: “KeraBio K31 is a strategic response to evolving consumer expectations around efficacy, sustainability, and science-led performance. 

“This launch is the result of extensive collaboration across our global business. By bringing together our innovation, sustainability, and formulation teams, we have developed a biomimetic keratin technology that not only reflects our commitment to pioneering high-performance beauty solutions but also demonstrates how we innovate together to shape the future of hair care.”

To learn more about KeraBio K31 and how it can help brands deliver proven hair repair and protection, visit Croda Beauty.


ENDS


For more information, please contact:
Mariana Wood, Croda Press Office
+447780987136
media.enquiries@croda.com

About Croda

Croda is a speciality chemicals company that creates high performance ingredients and solutions principally for Consumer Care and Life Sciences markets. Established 100 years ago in 1925 and headquartered in the UK, Croda is a FTSE 100 company with over 5,800 employees across 94 locations in 36 countries. Revenues in 2024 were £1.6bn. With a shared Purpose to use Smart science to improve lives™, and with around two thirds of its organic raw materials already from bio-based sources, Croda has committed to be the most sustainable supplier of innovative ingredients, becoming Climate, Land and People Positive by 2030 while providing solutions to some of the world’s biggest challenges. 
 
To find out more about Croda visit: www.croda.com

Croda Beauty

At Croda Beauty, we’re innovating for a beautiful world, one experience at a time. We craft trend-setting ingredients that redefine beauty standards and surpass expectations. With cutting-edge technology and capabilities in functional ingredients, actives and botanicals, along with our extensive formulation expertise, we can help you stand out and build an enduring brand in the global beauty industry.

To find out more about Croda Beauty visit: www.crodabeauty.com