I use this product day and night. This is the holy grail that helps removes dark spots and blemishes. If you use this product daily you will definitely see results. Even while you sleep it's helping to remove dark spots and blemishes. However, the glow your skin have after applying this is so amazing! I have dark spots in my inner cheek area from wearing a nasal mask. This product not only helps to clear the already dark area but protect my skin through the night so when I wake in the morning the area is not red and irritated from the mask wear at night anymore.This is where it get really amazing. The dark circles around my eyes are fading also. Using this twice day is truly showing its result of fading dark spots and brightening the skin. Giving the skin such a healthy bright look. My husband noticed my skin.