What acne product works best to get fast and effective results?

There are several popular acne products but which one gets you the results faster, and is it effective? Neutrogena, clearasil, clean and clear, clinique, biore, olay, and l’oreal. Which of these is the best acne product to get rid of acne with fast and effective results that you can see? And if you know, is there a product that gets rid of acne scars?