I have some of the worst under eye bags and dark circles. I wake up sometimes and underneath my eyes is so puffy and dark it looks like I got in a bar fight the night before! The woman at the counter told me this would be my miracle, she said it would tighten and lighten my eye area and make me feel great. I fell for it and bought it. I will say that it does tighten up the eye are very well. You can actually feel it tightening up after you apply. It does not however do anything for my dark circles or redness I sometimes have. I still use it occasionally for my puffiness but I use other products now for the circles under my eyes. Effectiveness It tightens up the puffiness under the eye and a little bit in the eye lid. It does not however lighten up dark circles. Ease of Application I put a small amount on my ring finger and gently massage all around my eye area. No need to rinse off if using at night time. Scent Has a really light scent, not really noticeable.