Skin is made up of three layers — the outer layer (epidermis), the underlying skin (dermis) and the subcutaneous fat tissue. If the outermost layer of the epidermis doesn’t contain enough water, skin will lose elasticity and feel rough. Despite this connection, however, there’s a lack of research showing that drinking extra water has any impact on skin hydration or appearance.
If you’re looking to maintain hydrated skin, there are steps you can take, including:
Avoid exposure to dry air
Avoid prolonged contact with hot or chlorinated water
Use a gentle cleanser instead of soap
Avoid using skin care products that contain alcohol
Moisturize immediately after a bath or shower and regularly throughout the day
Use a humidifier
Wear a scarf and gloves when going out in cold weather
If you’re concerned about dry skin, contact your health care provider or a dermatologist.