Although I'm young and don't really get bad dark circles under my eyes, I love make-up and I really wanted to give this a go - now I use it every day! It costs about £6 but the first time I bought it, I bought it on offer. The reason I decided to try it, other than the price, is because it claims to be cool and refreshing. I was not disappointed - it feels really nice when you've just woken up! It applies really smoothly and just makes your eyes feel fresh before applying make-up. The concealer is also really good and comes in 2 shades so it suits different skin tones. Although I don't really have dark circles, it does make a difference and brightens up my face. I also use it on my lids as well as under-eye because it works well as a primer for eye shadow, by evening the skin tone and giving something for the shadow to stick to. This is one of the main reasons I have continued buying it, because not only did it make a difference to my under-eyes which I didn't really expect, it also double's up as a primer, saving me money buying more products. So whether you have dark under-eye circles or not, I would recommend this product!