I'm fairly sure that this is what's causing the range in final textures. (smittenkitchen.com)
I chose arrowroot starch because it produces a less - chewy final texture, but tapioca or even cornstarch will work well, too. (edibleaustin.com)
Adding an additional liquid emulsifier allowed me to use less emulsifying wax for a softer final texture without reducing the cleansing power or rinse - off. (humblebeeandme.com)