Croda Beauty is pleased to confirm the official INCI (International Nomenclature Cosmetic Ingredient) name for its advanced hair repair ingredient, KeraBio K31, first previewed at In-Cosmetics Global in April:
Hydrolyzed sr-(Tripeptide-137 Hexapeptide-40 sh-Polypeptide-184 sh-Polypeptide-146)
This milestone marks a significant step forward in the global commercialisation of KeraBio K31, a biotech-powered biomimetic bond builder that delivers a vegan keratin recharge at the molecular level, strengthening hair beyond conventional repair.
Helene Hine, Global Insights and Innovation Manager for Hair, comments:
“Today’s consumers expect hair care to be as sophisticated as skincare. KeraBio K31 goes beyond patching up damage, it recharges strength from within using biomimetic keratin inspired by nature and delivered through synthetic biology. The INCI itself reveals the depth of the science: using precise bioengineering, with polypeptides derived from human genetic instructions, KeraBio K31 mimics the sequence and function of natural keratin. This bond builder is routed in real molecular performance and we’re proud to see it outperform all leading benchmarks we tested.”
Performance Backed by Science
• Bonds within the cortex (peptide binding assay, fluorescence microscopy)
• 100% stronger hair compared to the leading bond builder (cyclic fatigue)
• Improves with continued use (cyclic fatigue, multi-application data)
• Reset to virgin hair (DSC data, bleached/treated hair vs virgin control)
Stephanie Neplaz, Head of Hair Category, highlights the long-term vision:
“The INCI approval is a crucial step for global clarity and regulatory confidence, paving the way for commercialisation as we progress through 2025. We’re launching the industry’s first ingredient supplier solution for biomimetic bond building, and with its official INCI name now confirmed, KeraBio K31 is set to redefine what’s possible in hair care. Not just repairing hair but recharging it from within.”
KeraBio K31 meets today’s formulation expectations: 99% naturally derived (ISO 16128), vegan-suitable, phenoxyethanol-free, and EU/UK REACh compliant. With its newly established INCI name, KeraBio K31 represents a leap forward in hair repair technology. Croda Beauty is proud to offer this biotech-powered solution that truly recharges hair from within, meeting the evolving demands of discerning consumers.
