10. Not Moisturizing Oily Skin

Many with oily or acne-prone skin believe that skipping moisturizer will help control shine, but dehydrated skin often produces even more oil to compensate. The result? Increased greasiness and potential for breakouts. Dermatologists recommend lightweight, oil-free moisturizers that hydrate without clogging pores, rather than heavy creams better suited for dry skin. Keeping your skin properly moisturized helps restore balance and can actually reduce excess oil over time.