Conditioning, hairdressers

Health and Safety. The dermal toxicology of alkaline solutions of thioglycolic acid has been reviewed extensively (63—65). The reagent has been found harmless to normal skin when used under conditions adopted for cold waving. Some irritation is observed on abraded skin but this appears to be associated with the alkaline component of the waving solution (65). Hand protection is recommended for the professional hairdressers who routinely handle these products. 

A survey in 2000, carried out in Los Angeles by a group at the University of Southern California School of Medicine, found a link with bladder cancer. It involved 1541 people with this condition and they were compared to 897 people who were not so afflicted. Adjustments were made to take into account smokers, who are liable to be more at risk of this disease in any case, and it found that those who used permanent hair dyes every month had a slightly higher risk of bladder cancer, especially if they had used hair dyes continuously for 15 or more years. Hairdressers had an even higher risk. This revelation prompted the Scientific Committee on Cosmetic Products and Non-Food Products ofthe EU (SCCNFP) to issue a discussion paper in February 2002. This was followed in December that year by a requirement that manufacturers must submit by July 2005 all their data on hair dyes together with studies to assess their safety in terms of cancer and toxicity. The outcome of this has yet to be published, but it will take the form of an approved list of hair dyes which will be issued in 2007. 

Descriptive and cross-sectional study, verifies the conditions of the present moment estimating the prevalence of an event (musculoskeletal disorders) in a specific population (hairdressers). 

The reliability of the questionnaire was assessed with the test-retest method. The areas addressed included questions of work-related musculoskeletal symptoms, and of work conditions items. The results shown that for these sections of the musculoskeletal symptom and work history questionnaire the observed agreements ranged from 72.5 to 95.0%, and the calculated kappa estimates ranged from 0.50 to 0.80. Injury to body regions and job specialty, had the highest kappa values of K = 0.72. The hairdresser-oriented musculoskeletal questionnaire approach has represented a very high level of reliability on a five-point scale (Cronbach s alpha = 0.95). Therefore, the results collected, based on a step-by-step confirmation approach, are reliable. 

Only in 13%o of hairdressers pains disappear when they are away from work tasks. Regarding the time of disappearance of pain, the data show that 54%) of hairdressers report that the pain disappears within 3 5 hours after the end of job, and 32%) within 6 hours. The pain occurred in conditions of the job are manifested as a feeling of discomfort, localized or not, end of journey or during peak production, which sometimes improve, to rest or to decrease the rate of work (Caetano and Gonsalves, 2003). 

Hair conditioning can be associated with almost any hair product sold in the marketplace because they all claim some benefit to the hair when used. Thus the term hair conditioner can be applied to such products as rinses, hairdressings, setting lotions, and hair sprays. Conditioners are used to provide different effects to the hair primarily ease of combing,... 

Clear Gel Hairdressings Clear gel hairdressings come in two forms, i.e., microemulsions or setting gels. Microemulsions are systems containing mineral oil, which can be blended with emollients, conditioning additives, lanolins, and protein compounds. 

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