<human>:  What is the best way to keep your skin hydrated during winter?
<bot>: The best way to keep your skin hydrated during winter is to drink plenty of water, use a gentle moisturizing cleanser, and apply a thick, nourishing moisturizer to your skin daily. You may also want to consider investing in a humidifier, as it can help keep your skin hydrated by adding moisture to the air. Anhydrous products, such as Vaseline, can also help to keep skin supple and hydrated.