It’s not uncommon for people to think that a serum alone is enough – that they can skip the moisturizer. However, we strongly recommend you do not do this. Moisturizers are an important part of locking in a serum’s hydrating ingredients. If you don’t moisturize enough, you are: More likely to experience acne breakouts. Whether you have dry skin or oily skin, moisturizer can help maintain hydration levels. More likely to notice wrinkles. A good moisturizer plumps up the skin and hides developing fine lines. More likely to lose skin elasticity. Without the conditioning effect of moisturizer, your collagen and elastin fibers may stiffen and break down.