A hand crafted bath bar is very different from any commercially made, syndet (synthetic detergent) soap. These bath bars cleanse skin, have amazing lather, and have clays, herbs, and in some bars... loofa attitives.
The tallow bar feature fat rendered form farm raised cows, tallow is great for skin and allows for more of the animal to be used.  These bars feature rich foam lather. 
 
A hand crafted tallow bar is blended with other oils and full of natures goodness.  Try a handcrafted soap bar and discover the differences for yourself.