Amazing. I have spent hundreds of $$$ and have a drawer full of eye creams that didn't work for my dark undereye circles (caused, probably by a 65 lb weight loss and aging). I saw this product advertised in a magazine and wondered into an Origins store to check it out. They gave me a very generous sample to try. I used the sample morning and night for only 2 days and I saw my circles really start to fade. After, give-or-take a week/10 days, my circles were so light, I was convinced to by a full size and have used it faithfully ever since. It doesn't irriate, smell funky or have an applicator that wasted product. Try it. Buy it. LOVE it!