According to Tonya McKay Becker (aka CurlChemist), moisture is the most important thing during dry winter months. Ingredients such as humectants that function really well in humid situations can actually cause dryness in during the winter months. If the humidity and dew points are really low, it is best to limit them. Here are our top winter hair product pics that are low or free of humectants to help your hair stay moisturized all winter long.