시스테인을 주성분으로 하는 퍼머넌트 환원제의 웨이브 형성과 모발 손상도

The Level of Hair Damage and WaveFormation on Permanent Agents with Cysteine Compounds

This study was conducted to prepare the fundamental data for healthy hair, to assess the level of hair damage and wave formation on permanent agents with cysteine compounds according to the frequency of permanent, price and company of production. The model was a 20 year old woman with virgin hair which had never been chemically treated, and a sample was cut by the length of 20cm at the point and 5cm away from the scalp. Each sample of pieces was 2g and was used as permanent samples. The author observed and examined the hair roughness with SEM according to frequency of permanent, price and company of production, the level or damage were classified into 5 levels, and evaluated by ten professors of hairdressing in the Department of Cosmetology. There were significant differences in hair roughness according to the frequency of permanent (P<0.05). The level of roughness was the lowest in price of 5,000 Korean won. The levels of wave formation were higher in price and the more expensive. As above results, there were significant differences in hair roughness according to the frequency of permanent. The author recommend that the hair dresser should use protective material on hair in the procedure of permanent, and the author considers that various reducing agents should be developed and that there will be further research on hair permanent reducing agents.