One of the major benefits of making your own soaps, is that it leaves Glycerine behind. This Glycerine is created by the chemical proccess that happens during the saop making process. Most commercial soaps actually extract the Glycerine so that they can sell it as a seperate product. Now the nice thing about Glycerine is that us act as a humectant, meaining it attracts moisture to the skin. You end up with a soap that doesn't leave your skin feeling all dry after using it, and costing you less than having to buy those expensive soap.