I purchased the product because of it's good review that it can lighten dark spots brought by pimple scars. I tend to get a pimple or two during my monthly period. Everytime it will heal, a dark spot will be left. I was searching for a good cream that can deliver the results that I wanted. But apparently this serum only works after 2-3 months of use or longer than that. Most of the reviews states that it can whiten dark spot as early as 2 weeks but that is not the case for me. So far my dark spots had brighten but it is still there. It's quite disappointing since this serum is on the pricey side but they have the same effects of the cream I used before which is way cheaper. I will not repurchase.