Commercial hair dyes contain thousands of different chemicals, some of which are reported to be carcinogenic -- but you don't have to choose between gorgeous color and good health. Natural hair care expert Christine Shahin shows you how to use nontoxic plant pigments -- henna, indigo, amla, and cassia -- to color your hair naturally, whatever your hair type or ethnicity, with beautiful results These pigments are readily available at natural food stores and online, and they're simple, safe, easy to use, and cost-effective. With clearly written instructions and step-by-step photography, Shahin...