As the colder months set in, you may notice your skin transitioning into a dry, itchy, flaky mess. In addition to being unsightly, when skin becomes dry and irritated, it can exacerbate the symptoms of certain skin conditions such as eczema and psoriasis. Winter weather affects your skin in several ways. During the summer months, the humid air helps to moisturize your skin, and the nourishing minerals in vitamin D are more easily accessible because of the vast amount of sunlight. In places with harsh winters, such as the Northeast, once winter arrives, the humidity levels plummet outdoors and you’re stuck indoors for longer periods of time. Cold winter air lacks humidity and dries up natural oils in your skin, causing dehydration. Bitter winter winds also cause chapping and windburn. Between the harsh weather outside and the blasting heat inside, your skin needs extra care during the winter months.