Introduced at In-cosmetics 2025, KeraBio™ K31 marked a new era in hair repair science. Now, Croda Beauty is proud to reveal new breakthrough data confirming the extraordinary potency its molecular repair technology.
KeraBio K31: Next-level Biomimetic Bond Builder
As the first ingredient solution for biomimetic bond building from an ingredient supplier, and the first truly vegan keratin that functions like natural keratin, KeraBio K31 empowers formulators to create hair care products that repair from within and recharge the hair with keratin at the molecular level.
Through extensive testing, Croda’s scientists have pushed the limits of this technology to ensure it can be integrated across a wide range of formulations and brands. Already proven to deliver optimal performance at 0.5% active inclusion, new data now reveal that KeraBio K31 achieves strong efficacy from 0.05% — a remarkable tenfold reduction in use level. This breakthrough demonstrates its exceptional molecular precision and potency, showing how efficiently it rebuilds and recharges keratin from within, reinforcing the strength and sophistication of its design.
Why KeraBio K31?
Hair deserves more than temporary fixes or surface-level treatments. It deserves deep biomimetic repair. KeraBio K31 works within the cortex, repairing bonds, restoring strength and improving resilience. By combining biomimetic science with advanced peptide technology, it enables formulators to deliver bond building performance that addresses the root causes of damage rather than masking them.
Its concentrated power also gives formulators greater flexibility. With such potent efficacy at low inclusion levels, complementary ingredients can easily be incorporated, allowing brands to design differentiated, high-performing products that align with sustainability goals and consumer demand for responsible innovation.
Science That Delivers
The performance of KeraBio K31 is supported by rigorous studies:
- Peptide Binding Assay and Fluorescence Microscopy: Confirms it bonds to hair keratin within the cortex
- Cyclic Fatigue Testing: Hair treated with KeraBio K31 is 100% stronger than the leading commercial benchmark
- Multi-Application Study: The more you use it, the better it gets.
- Differential Scanning Calorimetry (DSC): Bleached hair treated with KeraBio K31 is reset to virgin hair.
These studies prove that KeraBio K31 delivers deep, molecular-level repair, ensuring hair is not just repaired, but recharged.
Responsible Innovation
KeraBio K31 is 99% naturally derived (ISO 16128), vegan-suitable, phenoxyethanol-free, readily biodegradable and EU/UK REACh compliant. These attributes allow formulators to create high-performing, responsible products that align with consumer expectations.
A New Standard in Hair Repair
With proven efficacy from 0.05% active inclusion, KeraBio K31 establishes a new benchmark in biomimetic bond-building technology. It empowers the development of next-generation hair care products that combine scientific credibility and advanced performance.
Request your sample today and see how KeraBio K31 can transform your brand, delivering precise, biomimetic hair repair powered by cutting-edge biotechnology.
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