Hi, for having a clear skin you need to do different factors like your diet your sleeping schedule and stress. For having a good and clear skin you need to get enough necessary vitamins, clean your skin routinely and have a regular enough and sufficient sleeping schedule. You can also use creams and there are many foods and nutrition which helps you this way and you can also use other people experience. But I have an advice for you to use a natural ways to have a good skin. Here there is a video about how to get a clear skin, removing spots, acne and black circle.