As we age, our skin’s ability to self-moisturize is diminished. This is an intrinsic ageing process (meaning it will happen irrespective of environmental factors), but excessive sun exposure can also accelerate moisture loss.
Dry skin is characterized by a lack of intercellular lipids, natural skin oils that sit in the intercellular spaces of the epidermis. These lipids make skin feel smooth and soft. They also perform a vital protective function, preventing bacteria, viruses and environmental chemicals from working their way into the spaces between skin cells. When intercellular lipids are diminished, skin can more easily become irritated, and feel “tight” or inflamed.

Treatment