모발미용이 모발의 표면구조와 미생물의 오염에 미치는 영향

Effect of Beauty-Treated Hair on Hair Surface Structure and Bacterial Contamination

Virgin hairs or beauty-treated hairs that are permanent wave, coloring, bleaching and coating were left inside and outside of laboratory for 7 days. Ten-times diluted chemicals for bleaching and coloring inhibited bacterial growth but did not yeast growth. Viable cell number of bacterial cells contaminated the virgin or the various beauty-treated hairs were maximal 106/g hair and minimal 104/g hair, which was determined by most probable number (MPN) method. The bacterial cells contaminated human hairs were observe with fluorescence light microscope after DAPI (4’, 6-diamindino-2-phenylindole) staining. Hair surface structure was not significantly changed by the permanent wave, coloring, bleaching and coating, which was definitely discriminated by DAPI staining and microscopic observation. Microorganism contamination level was not influenced by the beauty treatments and related to the chemical agents used for beauty treatments.