Do we need to use a moisturizer? People with oily skin don't need moisturizers, especially in warm weather. During cold dry weather, even oily skin can develop some chaffing. That's when you want a good moisturizer. Dry and tight-feeling skin is a good indication that you need a moisturizer. For most people, the need begins in their mid-twenties. You can then apply moisturizers that are right for your skin condition. There's an exception. Daily sun protection is a good idea, especially for the fair skinned. Totally aside from the skin cancer scare, the irreparable daily damage done by UV radiation does produce premature skin aging. For oilier skin most lotions works well.