The Black Skin

Our skin is made up of three distinct layers: the epidermis, the dermis, and the subcutaneous layer. The only visible layer, the epidermis, is composed mainly of keratinocytes -- cells that provide a protective barrier to the skin. The epidermis also contains melanocytes -- specialized cells that produce melanin, the brown pigment that gives our skin its rich color. Although all people have the same number of melanocyte cells, people of color have melanocytes that are capable of making large amounts of melanin. This increased melanin is what gives skin of color its warm shade. But there is no one type of skin of color. Among individual women of color, the amount of melanin varies dramatically, so that a woman with an abundance of melanin will have deep chocolate-brown skin tone, while a woman with less melanin will have vanilla skin tone. There are numerous shades -- an estimated thirty-five shades among women of African descent. Melanin is not a static substance. That is why our skin changes color in response to various stimuli. Our melanocyte cells can produce more melanin if stimulated by the sun, medications, or certain diseases. The most obvious example of this is tanning, which occurs when our skin produces more melanin after sun exposure. Our skin may also darken in response to certain drugs such as minocycline, which is commonly used to treat acne, or in response to certain medical conditions such as Addison's disease. The melanin in our skin offers us certain other characteristics that are superior in many respects to white skin. Have you noticed that you look ten years younger than many of your White friends of the same age? This is because of your skin's greater melanin content. Our melanin has many significant health as well as beauty benefits. The most terrific advantage to having large amounts of melanin in the skin is that it protects skin from the damaging impact of the sun. It guards the skin from short-term effects such as severe sunburn (although our skin can burn under certain circumstances). Our melanin also guards our skin from long-term damage associated with aging -- the development of deep wrinkles, rough surface texture, and age spots (sometimes called liver spots). However, we must accept the down sides as well. A disadvantage to having more melanin is that it makes our skin more "reactive." That means almost any stimulus -- a rash, scratch, pimple, or inflammation -- may trigger the production of excess melanin, resulting in dark marks or patches on the skin. These dark areas are the result of what is called postinflammatory hyperpigmentation. Less commonly, some Black women will develop a decrease in melanin or postinflammatory hypopigmentation in response to skin trauma (burns, etc.). In either case, the dark or light areas may be disfiguring and devastating for women who experience them, especially because the discolorations may take months or years to fade. That's why handling your skin gently, wearing sunscreen, and preventing pigmentation problems are keys to our skin care.