I used to use silken seal (you will love the slip) on soaking wet hair for rollersetting and the liquid sheen on dry hair for sheen. I stopped using it because of the CONES, I think it was blocking the moisture I was trying to achieve with certain products.
I have had hair dressers use the liquid one on my hair as they flat ironed it for extra shine. I just bought the liquid one (spray) yesterday for this purpose.