This is my go to skin care set. It is 4 products with 11 skin-loving benefits and its so easy to use. The cleanser, Day Solution, Night Solution, and Moisturizer leave my skin feeling clean and fresh, feeling soft and looking bright, while fighting early signs of aging. I mean you don't have to but I say just try it if you aren’t hoary with your current skin care system. I have been using this system for like 10 years and it has never gone wrong.