Dry hands

The winter seems to be the worst for my skin, it gets so dry. I know a few others who have had this problem each winter as well, but during these past few winters I have noticed that my hands are very dry in the winter and require a lot of moisturizers or like lotions to keep them from getting to dry. I rock climb though at a fitness club a few times a week, and since I use chalk I’m wondering it that makes it worse (because it makes my hands dry to hold onto holds without slipping as much). But it just makes wonder, because my hands used to not be as affected during the winter weather.