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| Beautiful hair may come with a price -- most hair products contain dangerous chemicals |
With an ageing population wanting to keep a young appearance and cover grey hair, the hair coloring industry is poised to expand further and make some leaps in terms of technologies and safety.
Hair color chemicals a threat to human health
Most permanent hair colors use p-phenylenediamine (PPD), a chemical that produces darker and browner shades when exposed to air. It can also be found in many semi-permanent hair colors.
However, hair stylists and salon patrons have long been concerned over the safety of PPD and other hair dye chemicals in beauty salons and spas, including formaldehyde and ammonia or other alkalizing agents and hydrogen peroxide or other bleaching chemicals.
Researchers aim to develop new hair dyes and alternative hair coloring technologies that will include nano-sized colorants, for example, which can lead to longer lasting hair color. Other substances may stimulate the genes to produce the melanin pigment that gives the hair its color, which promises more natural-looking hair dyes and less toxicity.
Scientists are also exploring technologies in gene therapy that may stop the graying of hair or prevent it completely.
Other hair treatments raise safety concerns
Recent reports about hair products such as hair relaxers showed that the chemicals affected the health and well-being of hair stylists. Reported health effects linked to the use of keratin-based smoothers used by curly-haired women included nosebleeds, breathing problems and eye irritation.
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Source: http://www.sciencedaily.com/releases/2011/03/110302121708.htm
Hello friends,
ReplyDeleteScientists at the university of Leeds are planning to extract chemical compounds from different species of seaweed and use them to develop a new range of hair dyes. The naturally sourced compounds will be used by scientists as substitutes for synthetic ingredients that can be found in most hair dyes currently on the market. Thanks a lot......
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