I haven't tried all four samples yet, but I can review two so far. The first one I tried was Premium. I love how it felt on my skin, but the color was a bit to dark for my skin.
The next one I tried was the Water Fuse and I have been using that since. Provides wonderful hydration for my dehydrated skin and leaves a nice natural glowing finish on the skin. I have been using this tiny tube at least three days a week for the past 2 months and I'm still not finished with it! That's an amazing value. Excited to finish it to try the Black Label and Renewalist.