The number of pigments that are found in each skin cell determine its color. These pigments develop depending on where in the world they are.
A lighter color helps absorb vitamin D, which is essential for health, while a darker skin tone acts like a natural sunscreen and protects the body from harmful rays.
These pigments act like the skin’s protective barrier— but they’re not alone. The same role also applies to the skin's microbiome, an ensemble of bacteria that cover the entire body. As described by Bonnie Bassler, a molecular biologist, “there are ten times more bacteria on the skin than in human cells. That means one person is composed of 10% human and 90% bacteria.” The goal of these “good” bacteria is to form a protective barrier that limits external aggressions like wind and pollution. If the microbiome is disturbed, the skin can develop diseases and infections.