This product is a miracle!! Since I started working for Shiseido I have these dark undereye circles. This eye treatment in 1 week helped diminish them. I am on week four and it's starting to fade. It's a high performance eye treatment that targets roughness, dark circles, fine lines, uneven skin tone. It also has a 24 hour moisturizing effect. I use this in combination with the Ultimune Eye concentrate by Shiseido.