I decided to give it a try since the travel size was on sale, and now I am stocking up while the sale lasts. For this price it's really worth it. I have acne and quite a lot of pigmentation from it. This product really works on those post acne marks. I also use it on active pimples once a day and it reduces redness, I think it even reduces the size of pimples. Even my husband noticed how much it calmed down the redness. I dot tiny amount on post acne marks and active breakouts, and then gently tap it in. Then I wait about 10 mins and apply moisturizer. I don't think it's a necessary step in routine if you don't have noticeable dark spots or post acne marks, but if you do, give this a try.