Dark skin gives seven to eightfold protection against DNA damage, but even the darkest skin colour cannot protect against all damage to DNA. Dark skin offers great protection against UVR because of its eumelanin content, the UVR-absorbing capabilities of large melanosomes, and because eumelanin can be mobilized faster and brought to the surface of the skin from the depths of the epidermis. For the same body region, light- and dark-skinned individuals have similar numbers of melanocytes (there is considerable variation between different body regions), but pigment-containing organelles, called melanosomes, are larger and more numerous in dark-skinned individuals. Keratocytes from dark skin cocultured
Baumann Skin Types keep allergens and irritants out. Sensitive skin often reacts to skincare products with redness, stinging, burning or acne, while resistant skin rarely experiences negative side effects. The strong stratum corneum associated with resistant skin can make the skin resistant to the beneficial effects of skincare ingredients due to less absorption. There are 4 unique subtypes of sensitive skin, and they are all different, all sensitive subtypes have inflammation in common. This skin attribute is measured by the skin’s tendency to develop unwanted pigment. This can be sun-induced, as in melasma, solar lentigos and freckles, or due to injury in the