This product was recommended to me as a 'beginner' eye cream. I was around 25 when I started using it. In the winter it wasn't enough moisture and I ended up with my eyes red raw (not because of this eye cream just the seasonal changes). This didn't help that (but I found another Clarins product that did!).
This is a great relaxing eye gel. I didn't notice any huge difference or results. It just freshens up the area and it's nice and lightweight. I love the cooling sensation as you gently pat it onto the eye area. I didn't notice any difference in my dark circles and since I don't have puffiness I can't comment on that aspect. However it's a nice product, it will last you ages as well.
My eyes are quite sensitive and I find this gel doesn't irritate at all. Very calming and pleasant to use