Soaps made sustainably, using animal fats are the most gentle, natural, and moisturing. These soaps are made from fat left over after harvesting from a local sheep ranch. Quite literally, this fat is saved from landfill.
I personally render/strain the fat, which takes about 36 hours...from each 50lb box of frozen fat.
Then I am busy making wonderful soap.
Tallow makes a nice, hard bar of soap that lasts a long time.