Tag: Fractional laser treatment

Laser treatment and skin barrier

Medical Beauty
Skin is the body’s largest organ covering the entire body surface and playing an important role as a barrier. The stratum corneum of the skin located at the outermost layer of the epidermis was once thought to be a structure formed by useless dead cells. However, recent studies have found that keratinocytes and their extracellular components are closely linked to each other, providing a barrier for penetration. The skin barrier is often compared to the “brick wall” structure. The keratinocytes are like the “bricks” of the wall, while the lipids between the cells are like the “mortar” of the wall. It connects the keratinocytes tightly, making the skin barrier normal, ensuring neither losing moisture nor being invaded by the outside world.Besides, there is a layer of hydro-lipid film, which,