Skin will naturally get drier in the cold weather. Also being in the central heating will also dehydrate the skin. Absence of sunlight skin produces less oil resulting in a dull complexion and more visible dehydration lines. Using something like Environ Ionzyme Hydrating Serum regularly will help. To maximize the result I would first cleanse and tone with environ AVST cleanser and Toner then use the home Cosmetic roll kit. Roll the skin for 3-5 minutes creating little channels into the skin for deeper absorption. Apply the Hydration Serum and leave the skin for 5-10 mins before applying your daily vitamin cream.