this works wonders along with the vita-c serum, it brightened up my very hyper pigmented spots on my chin in a week if not days! I should mention that I only use this at night and I do spot treating with this product—PLEASE DO NOT USE UNDER MAKEUP even though it states otherwise. it has a very pigmented white cast that made my foundation shade look way off and gray but it really does work so using at night and spot treating is the way to go. i still give it 5 stars because the difference it made was very very good