Your New Colorist, Mother Nature

Much to the chagrin of bleached, darkened and highlighted ladies worldwide, recent studies have linked the chemicals in hair dye to allergies, dermatological conditions and even cancer. Consequently, there has been an especially strong push for hair color to go green-not literally, of course-so companies have been laboring in their labs in the quest for a natural solution.

The top chemical concerns are p-toloenediamine (PTD) and p-phenylenediamine (PPD), the latter of which is banned in several countries (though present in most US-used hair dyes). The University of Leeds has been working with British chemical company DyeCat to replace these chemicals with botanical ingredients, such as seaweed, that perform identically without the harmful side effects.

"DyeCat is developing a range of permanent hair dyes which do not rely on these dangerous chemicals and which incorporate natural materials that do not exhibit these harmful properties," they company states. "These preparations do not require the harsh conditions normally associated with hair dyes, reducing the damage caused to the hair and skin."

Having already succeeding developing semi-permanent natural dyes, the researchers are hoping to see their aforementioned permanent dyes on the market in just a couple of years.