Hyperpigmentation is a complicated condition faced by many skincare professionals and consumers alike. This presentation will explore the mechanisms of melanin formation and melanocyte function and associated states of hyper/hypo pigmentation. Learn why the enzymes tyrosinase, phenylalanine oxidase, and newly discovered lightening mechanisms such as melanosome transfer (MIT) and melanin stimulating hormones (MSH) inhibitors are critical components in melanin formation, and how to reduce melanin by exfoliation and inhibition of melanin formation.