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Show Cold Wave Permanents Found Harmful In Scientific Tests Cold wave preparations are definitely harmful to the scalp and hair, according to the results of exhaustive scientific tests recently completed. New home permanent waves are also likely to be dangerous dan-gerous for the same reasons, the tests show. The tests were made by the lab oratory of Good Housekeeping magazine in response to many requests re-quests from women as to the merit of the cold wave permanent. "In the case of every cold wave preparation we have so far examined, exam-ined, our laboratory has advised us: 'This cannot be considered entirely en-tirely safe,' " an article in' the June issue of the magazine states in part. The reasons back of the decision were: "The cold-wave solutions we have examined contained thiogly-collate, thiogly-collate, an ingredient widely used in depilatories and likely to be highly irritating to the skin. In patch tests we conducted on a group of people, too many developed devel-oped irrilations for us to regard it as entirely safe. "The, laboratory further found that these products tend to decompose decom-pose standing on the dealers' shelves and in beauty shops. As they decompose they develop compounds com-pounds that are potentially dangerous. dan-gerous. "Because thioglycollate is a depilatory de-pilatory with a destructive action on hair, it is extremely important to stop its action by treating the hair with an arresting solution at just the right point. The hair must be plastic enough to wave, but not damaged. In actual practice this is not easy. Frequently the hair keeps on breaking, so that the owner thinks, 'My hair is falling out or thinning.' A typical complain com-plain is that of a reader who says: .'I had a cold wave a few weeks ago. It cost S20 and did not last at all.' " |