BTMS-50, or Behentrimonium Methosulfate is a vegetable based conditioning emulsifier. It can be used to emulsify lotions and scrubs but is more commonly used to make hair conditioners.  

Behentrimonium Methosulfate is a quaternary ammonium salt derived from the natural plant oil Colza, or what is commonly known as Rapeseed Oil. It offers excellent detangling and conditions without the build-up often seen with other conditioning quaternary conditioning agents.  BTMS-50 is capable of emulsifying high levels of silicone, and is also a fantastic emulsifier for use in skin care products.