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Is your family shampoo potentially harmful? Let’s begin by considering the three compounds mentioned previously. These were methylisothiazoline, dimethicone, and the grouping generally described as parabens. Methylisothiazoline is sometimes included in shampoo and personal hygiene products to limit the potential for microbial contamination in water based solutions. Like many artificial preservatives, methylisothiazoline appears to disrupt the biological integrity of experimental animal subjects. The most alarming of these was the finding that prenatal exposure in laboratory rats resulted in disorientation and destruction of immature nerve cells. This research raised the possibility that the neural development of unborn human babies might...

The chemical compound Diethanolamine (DEA) is used as a wetting agent in some of the most popular shampoo brands which are currently stocked in supermarkets and hair salons. While unlikely to be carcinogenic in its pure form, DEA is inclined to react with other shampoo ingredients to form carcinogens like nitrosodiethanolamine (NDEA). Once transformed in such manner, the harmful recombinant can be readily absorbed through skin. The potential for interactive effects is of considerable concern to health advocacy and consumer groups. There are approximately 10,000 chemical ingredients manufactured for use in cosmetic and personal care products. Given that some individuals use a range of products, several each day perhaps, the potential for interaction...