Yes, there can be slight lightening of the skin from the retinoids (retinA, tretinoin, differn, adapalene, tazorac, tazarotene) as well as azelaic acid (azelex and finacea). Overview. Milia are commonly found on the skin of people of all ages. They are formed when keratin (a substance produced by the skin) becomes entrapped beneath the outer layer of the skin, forming a tiny cyst. Acne, also known as acne vulgaris, is a long-term skin disease that occurs when hair follicles are clogged with dead skin cells and oil from the skin. It is characterized by blackheads or whiteheads, pimples, oily skin, and possible scarring. Skin conditions and the distress they cause can unfortunately often be overlooked by many. If you are worried about your skin or it is affecting how you feel or your ability to go on with your day, it is extremely important to seek help from a medical professional. Hello, Overactive Sebaceous glands and oily skin are a common problem. While some oil is important to maintaining healthy skin and hair, some people do indeed overproduce oil and are left with greasy skin. Keratosis Pilaris (KP) is a very common skin disorder seen in all kinds of people and all ages. It is a benign condition which appears as numerous small, rough red or tan bumps primarily around hair follicles on the upper arms, legs, buttocks, and sometimes cheeks. Acne vulgaris (acne) is the formation of comedones, papules, pustules, nodules, and/or cysts as a result of obstruction and inflammation of pilosebaceous units (hair follicles and their accompanying sebaceous gland). What is milia. Milia are multiple small skin cysts or tiny white bumps containing keratin (skin protein that forms hair, nail and dead skin cells). Information relating to skin problems including skin diseases and conditions, cosmetic surgery, medications, and treatment. The Interactive Dermatology Atlas web site does not define a standard of care, nor is it intended to dictate an exclusive course of diagnosis, treatment or management.