In winter, as temperatures drop, so does the level of water vapour (humidity) in the air. Cold air can’t hold as much moisture as warm air – that’s why when you exhale into icy morning air, your warm breath instantly condenses into fog droplets.
Dry air also gradually sucks moisture from your warm skin. In skincare terms, this is known as Transepidermal Water Loss (TEWL). To make matters worse, when cold, dry air is heated inside, the relative humidity drops even further, speeding up the process of TEWL. Couple that with long baths and hot showers (which also draw out moisture and natural oils) and the result is skin that can feel dry, tight, and flaky all season long.
You’ll probably first notice your skin looking dehydrated when you wake up, because skin releases more moisture during sleep, plus you’ll have gone a number of hours without drinking water.
Left unattended, ongoing dryness can cause inflammation and irritation, while worsening eczema, allergies and psoriasis. However, with a few simple actions and the right active ingredients, your skin can stay resilient and supple through all seasons.