I use review sites to see the ingredients lists, etc., if the manufacturer doesn't list them on their website...and for the chuckle.
For my food and my babies food, I pay attention only to the specific ingredients and what I already know about them or what I can learn in the case of a new ingredient. I have spent many years doing this kind of research because I am chemically sensitive and was sick every day of my life for many, many, many years....but not any more!