That maybe true for some but not all normal soaps (but soap manufacturers have a choice of Palm, Palm Kernel, Coconut and Olive oils)- and I love Savon de Marseille and Aleppo soaps, however its not true for shaving soaps:
Here are the ingredients of my favourite soap:
SODIUM PALMATE, SODIUM PALM KERNELATE, AQUA (WATER), GLYCERIN, PARFUM (FRAGRANCE), PALM ACID, BUTYROSPERMUM PARKII (SHEA BUTTER), SODIUM CHLORIDE, PALM KERNEL ACID, AMYL CINNAMAL, TETRASODIUM EDTA, TETRASODIUM ETIDRONATE, TITANIUM DIOXIDE, D-LIMONENE, HEXYL CINNAMAL, BUTYLPHENYL METHYLPROPIONAL, COUMARIN.
The shaving guys will know its a French made soap :mrgreen: