Key points Introduction Winter brings cozy layers and hot drinks — and also dry indoor heat, cold winds, and a big hit to our skin’s moisture. The low humidity common in winter increases transepidermal water loss (TEWL) and can leave skin flaky, tight, and prone to irritation. Hair likewise becomes…
Introduction Cold weather brings cozy sweaters, hot drinks, and — for many of us — dry, tight, flaky skin. As temperatures drop and indoor heating kicks on, the air’s relative humidity falls, and the skin’s ability to retain moisture weakens. This seasonal shift commonly leads to xerosis (dry skin), which…





