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KMID : 0381920060360010025
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Korean Journal of Microscopy
2006 Volume.36 No. 1 p.25 ~ p.33
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Ultrastructural Changes of Hair Treated with Bleaching Agent
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Chang Byung-Soo
Lee Gui-Young
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Abstract
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This study applied a bleaching agent, which is commonly used in the beauty salons, to the hair of normal adult women, collected the hair immediately and 10 days and 20 days from the bleaching, were investigated the degree of degradation of the hair by using scanning and transmission electron microscopes. The surface of hair just after bleaching was observed to be similar to that of normal hair, showing no split or damage of scale. In the hair of 10 days after bleaching, however, the scale came off. From this time, scale on the cuticular layer of hair began to be separated. In 10 days from bleaching, the scale on the cuticular layer was separated from hair and some cytoplasm of cuticular cells was broken into pieces or fell off. The cell remains made the surface coarse and uneven. At this period, damaged scales had a sharp end. In the hair of 20 days after bleaching, scale fell off from the whole surface of the hair and the surface looked rough. On the bleached hair, many vacuoles were formed in the endocuticle of cuticular cells. As a result, deformation caused by the formation of vacuoles in cuticles broke up the cuticular cells.
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KEYWORD
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Bleaching agent, Hair, Hair cortex, Hair medulla, Intercellular membrane complex
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