When buying "green" cleaners - you really have to read the labels and do the research - if it is something you are concerned about. I've gone totally to natural homemade cleaners, but before that, I switched from regular to "green".
I bought some method foaming handsoap - b/c it was on Oprah's green show and b/c it smelled lovely. I recommended it to my sil who at 25 developed severe skin allergies and has a major list of ingredients she is allergic to. She took one look at the method ingredients and laughed. DMDM hydantoin is in the foaming soap, and it is actually formaldehyde. I don't know much about formaldehyde (I think it is used as a preservative) and someone told me it is technically "natural", but I don't want it in soap that my family uses. I dumped the almost empty bottle, put in a couple of squirts of Dr. B's and my fave EO, and now I have my own lovely smelling foaming hand soap and I know what the ingredients are!
In the end, it is all about what you are comfortable with, but I've found that a lot of the "green" store bought products are not disclosing all of their ingredients. Happy shopping!