How do you know if a hair product doesn't use CFC's?

How do you know if a hair product such as mousse or hair spray doesn't use CFC's but doesn't say so on the bottle?

Or is that possible?

Would calling the toll free number located on the bottle and asking help

How do you know if a hair product doesn't use CFC's?

I don't think many (if any) products use CFCs anymore. If you are unsure and it doesn't say anywhere on the bottle, go ahead and call the 1-800 number and ask. Do a search on the internet, though, because I was thinking they were outlawed and had to be phased out....