Mitchell's Wool Fat Soap was first produced in the early 1930s by Bradford chemist Fred Mitchell who realised that the natural lanolin content of wool fat, which kept the hands of local sheep shearers and wool sorters so exceptionally soft, could also be beneficial to delicate complexions and sensitive skin. A simple and natural product, Mitchell's Wool Fat Soap is still made to Mr. Mitchell's original formula, based on a recipe from the turn of the century and incorporating lanolin from the wool fat as the key ingredient.