. . . it can be challenging How about products that say they're "hypoallergenic," "natural," "herbal" or even "organic?" Sorry, but because this market is unregulated, such product descriptions are meaningless. How about buying products at the health food store? Sorry again, but genuinely non-toxic products are relatively rare, and most health food store products don't pass the test. Now manufacturers do have to list all ingredients on the bottle, so you can become an expert on the particular ingredients to avoid. I've written about many of these in prior Newsclips, and the Environmental Working Group (EWG) has done an excellent job in making educational materials about common toxins available on their website. (Also see, "Is Your Bodycare Toxic" by the EWG, at www.shareguide.com/bodycare.html.) However, manufacturers don't have to list unintentional ingredients, i.e., impurities. For example, a Canadian study recently found heavy metals (arsenic, cadmium, lead and others)…