Science Behind Hyperpigmentation
Let’s start this off with a little science nerd chat! Hyperpigmentation occurs when there is an overproduction of melanin, which is controlled by an enzyme known as tyrosinase. As tyrosinase produces melanin, it stores it into vesicles that are inside the melanocyte, and are known as melanosomes. Then, they are transferred from the melanocyte to the keratinocytes. Keratinocytes travel from the bottom of the epidermis to the stratum corneum (the part that we see) as they age, and they carry with them the melanosomes. This results in a deposit of melanosomes that contain melanin on the epidermis.
So now that we know how hyperpigmentation occurs, how do we stop it dead in its tracks?