Hi, here's a quick hair product review. I have very dry, curly/ frizzy hair. The CHI silk infusion makes it soft, shiny and straight- but it's pretty expensive. If I use too much it makes my hair look oily. It does last a very long time, because a little goes a long way. The infusium (frizz)ology works great at controlling frizz (doesn't add as much shine) but it's very inexpensive. I just thought I'd throw that out there for anyone that is frustrated with frizzy hair!