Almost 90 percent of the 10,500 cosmetics and skin care ingredients known to the U.S. Food and Drug Administration have not been evaluated for safety by the Cosmetic Ingredient Review, the FDA, or any other publicly accountable institution, according to the Environmental Working Group. To be fair, no one's dropping dead after a using a mascara wand or a body wash, and manufacturers have an interest in creating products that don't harm their customers. But complex chemicals with potential unknown side effects lead us to follow the Precautionary Principle. That is to say, if we’d prefer to err on the side of safety until we know. We’re not the only ones who feel this way: More than 1,110 personal-product ingredients have been banned for use in cosmetics in the European Union because of concerns that they may cause cancer, birth defects, or reproductive ills.
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