As such, the skin is exposed to a large number of external and internal aggressions that weaken it. Thus, with the passage of time, the skin tissue shows signs of aging: wrinkles, flaccidity and spots, damage largely generated by the incidence of the sun's rays. The skin's natural pigment, melanin, offers some protection against them , as it absorbs ultraviolet radiation and protects DNA.
In this regard, dark skin has an advantage: they produce more melanin and, therefore, tend to deteriorate less. This substance accumulates in melanosomes, a type of organelle or compartment belonging to the cytoplasm, the part of the cell located between the nucleus and the membrane. The size of these pigment stores largely determines skin tonality, and as the melanosomes of black individuals are larger than those of whites, the former suffer the ravages of photoaging to a lesser extent.
But not everything is excellent: a dark complexion synthesizes vitamin D worse, and excess pigmentation usually leads to the formation of keloids – thick scars – or irregular spots.
