Here's my honest answer: Sometimes it works well. It hasn't made my skin oily and I have combination skin. I think it depends on the person. Seems like Youth code works really good for some people and not at all for others. My personal experience is that I tried a sample of it and it worked WONDERFUL, so I purchased full size. I've gone through 2 bottles of the full sized now and I see no change. I find it really odd because with the sample I noticed a change immediately in my expression lines, but the full size has been a no-go for me. That being said, I've noticed that it does work for some women and some ladies swear by it.