Hong Kong, April 18 -- The skin barrier has been an important point of discussion in the beauty world of late. It helps maintain your skin's overall health and pH levels, without which it can act out. Here's everything you need to know about the damaged skin barrier and how to repair it.

The top layer of the skin is often referred to as the skin barrier or moisture barrier. The natural oils in this area help maintain the biome of the skin by keeping the good stuff in and the bad out. It protects the skin from external toxins such as pollutants and harmful chemicals.

The skin barrier also helps regulate moisture levels of the skin by preventing transepidermal water loss. A healthy skin barrier is the key to achieving youthful, hydrated a...