The Internet is great for researching ingredients, however be wary of the source. Much information is prejudicial or biased to a particular product line or person's perspective. There is not much in the world of skincare that does not a have detractor to announce the deadly side effects of an ingredient. Two recommended sites would be the Environmental Working Group (EWG) Cosmetic Database and the Cosmetic Ingredient Review (CIR). Both of these organization are unbiased in their opinions and approach skincare ingredients safety in slightly different ways.