Review (5/5): Glycerine Soap for the win!
Seriously, if you aren’t already using glycerine soap then you should be. Glycerine absorbs water. It pulls moisture to your skin. Usually it is separated and used as lotion or moisturizer but you should be using it in your soap! It will help your skin absorb moisture from the air. This is some of the cheapest, best soap money can buy. Just try it.