Technically, sensitive skin refers to skin that is genetically less robust than other skin types, even when it is healthy. However, many people experience skin sensitivity as a result of a compromised skin barrier. The barrier is the skin’s natural protective layer. When this is weakened, irritants can get in and set up inflammation in the deeper layers of the skin. Valuable surface hydration is also lost. This can lead to dull, red, blemished, dehydrated skin. When the skin is in this condition, many Janesce products will be too active and stimulating for the skin.