Behentrimonium Methosulfate (BMS) for Natural Hair

“This scientifically sophisticated ingredient is renowned for its superior detangling ability, without causing build-up on the hair. Unlike other hair detanglers, which are known for their irritancy, behentrimonium methosulfate is extremely mild, being recommended for use in baby products which are left on the skin. It is superior in effectiveness and mildness to it's commonly used cheaper cousin, behentrimonium chloride. It is not a sulfate.” (http://www.upurea.com/ingredients_a-i/?___store=us)