You can feel this working on your skin. That's a good or a bad thing, depending on your tastes. I like feeling it. It's a thick serum and it works quickly. I have seen my face seem clearer and more bright since I started using (I also use their Vitamin A moisturizer). The downside to this is the price -- it's expensive and it's not a HUGE bottle. I just bought my first one after using samples -- I imagine it will last me a month.
Seems effective, does feel greasy
Seems to do the trick, moisturizers and softens my skin. However, it does seem to be a little greasy. Oh humid mornings I don't recommend this stuff.