Daniel Goleman mentions GoodGuide.com as a website that allow consumer product ratings on the Health, Environment and Society (companies social practices). Items can be checked out individually or by class of chemicals such as laundry detergents. The highest rated products are listed first.
Skin Deep is another website that helps users choose the safest cosmetics to use. The items are rated on potential toxicity. The rating system is transparent but a bit complex. You can also search for specific chemical components. This is helpful for a person looking at specific ingredients in a product.