I just bought the Chi Silk Infusion but i was wondering if it is used on wet or dry hair or both. Does anybody know? Or can i use it on dry hair and then straighten my hair?

Thanks

Does it work good on dry hair?
My friend loves it and I'm considering buying it.
I know the directions say to use it on wet hair, but does it work well on dry hair?
Thanks.
How about if I use it on dry hair right before I straighten?