Water doesn't moisturize your skin. However, it retains cell hydration and plumps skin.
Hydrating skin care products block water loss. Humectants like hyaluronic acid and glycerin draw moisture from the air and body to hydrate your skin.
The body repairs itself and rebalances skin moisture by sweating more at night. To benefit from these natural processes, get eight hours of sleep.
Sunscreen guards against UV damage. UV radiation can dehydrate you as you sweat. It damages skin cells, which might lead to additional concerns.
Dry air dehydrates your skin, making your body work harder. The preceding preventative steps help keep your skin hydrated, but weather and climate cannot.