QAI Hair Launches World’s First Covalent Grafting Polypeptide to Repair Damaged Hair
Solution based on PolyGraft-9, a highly reactive cysteine protein—developed by a former Senior Vice President of Chemistry for Redken that was discovered by his grandson
United States, 4th Aug 2026 — QAI Hair today announced the launch of a line of hair care products featuring the world’s first Covalent Grafting Polypeptide. The products’ Covalent bond Conversion Catalyst represents the final evolution of molecular hair repair, which restores hair back to its permanent natural covalent state. The line is based on PolyGraft-9, a highly reactive cysteine protein developed in secrecy but never released by the late Dr. Lee Hunter, former Senior Vice President of Chemistry for Redken. Dr. Hunter’s grandson, Kollin King, discovered the formula and is bringing it to the market.
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