Retinol: Retinol is simply another word for vitamin A, sort of like how we call vitamin B7 “biotin.” It’s important that our bodies get systemic vitamin A through our diet for good vision, a strong immune system, and general organ function, but some research suggests that vitamin A could have a positive impact on the skin when applied to it directly. The problem is, regular retinol doesn’t actually do much for acne. That’s because the retinoic acid found in retinol isn’t always activated when left to its own devices. We typically have to activate the retinoic acid synthetically through the creation of various medications.
Photodynamic therapy – Photodynamic therapy is a relative newcomer to the world of acne treatment. Often reserved for moderate to severe acne because of the seriousness of the procedure and the downtime required following each treatment, photodynamic therapy reduces the size of sebaceous glands that produce oil. However, permanently reducing your skin’s sebum output may have long-term consequences because of sebum’s positive qualities, such as helping the skin to retain moisture and fighting bacteria.
Decreased levels of retinoic acid in the skin may contribute to comedo formation. To address this deficiency, methods to increase the skin's production of retinoid acid are being explored. A vaccine against inflammatory acne has shown promising results in mice and humans. Some have voiced concerns about creating a vaccine designed to neutralize a stable community of normal skin bacteria that is known to protect the skin from colonization by more harmful microorganisms.
Cysts are another troublesome type of acne to treat successfully without the help of a doctor. A cyst forms similar to a nodule—way beneath your skin’s surface. However, cysts are thought to form from pustules because they contain pus. They are painful when touched resemble a boil. They appear to be a large, red, swollen lump on the skin surface. People who are prone to them may get one large cyst or a clump of cysts.