When it comes to beauty products, some companies are more concerned with the efficacy of their product more than its safety. Companies that boast about being natural may actually use harsh chemicals and compounds like parabens and titanium dioxide.
As it turns out, most companies' healthiness runs on a product-to-product basis, with some products being perfectly healthy and others using dangerous chemicals. Before buying any product, even from a company that claims to be natural or cruelty-free, check out all the ingredients. Cruelty-free to animals, while a great thing, does not necessarily mean that the product is safe for you!
To check on beauty products you already have or are thinking of purchasing, I recommend: http://www.ewg.org/skindeep/
To learn about the environmental impact of everything from cosmetics to cars, visit: http://www.goodguide.com/