Long-Lasting Antimicrobial Effect Achieved via Immobilization of Antimicrobial Agents on Hair Shaft

This study explored a method to achieve a long-lasting antimicrobial effect by covalently binding antimicrobial agents to the hair shaft. The research demonstrated that hair treated with quaternary ammonium compounds (QAC) exhibited antibacterial activity against bacteria causing dandruff and underarm odor. Although the antibacterial effect diminished slightly after 5 washes, it remained effective. The findings suggested potential applications in personal hygiene products like shampoos and deodorants to prevent and alleviate dandruff and axillary odor.