During the summer months there is more humidity in the air, humidity helps to retain the moisturizer in your skin and protect the skin barrier. In the cold months, the outside air, as well as the inside air (partly due to the use of heating), becomes much drier.

Had a wonderful holiday, charged your skin with vitamin D and cleared your head while enjoying an exotic (non) alcoholic drink. But when you get home, your skin is suddenly a bit dull... how is that possible?