Lotion seals the skin and keeps moisture from escaping. It doesn't add moisture, but prevents your body from losing its own moisture.

Atmospheric moisture: nothing

Liquids: placement and design of the airbox/driving habits

Liquid in a recipe adds moisture and prevents the food from drying out.

It prevents ingress of moisture.

Whereas intersheath provide proper stress distribution.

As salt absorbs moisture from the surrounding air, it prevents apples from browning.