• Formulating

  BTMS 80

  Posted by Nyatou on October 7, 2025 at 6:27 am

  INCI Name : Behentrimonium methosulfate & Isopropyl alcohol

  Hi everybody,

  I need help. When doing an emulsion with this ingredient that comes in pellets, which phase should it go in? When I add it to the water phase and heat it, it doesn’t fully dissolve. Shall I grind it first?

  And what’s the best procedure to work with it?

  Regards,

  Thanks in advance.

  Aniela replied 1 hour, 52 minutes ago 2 Members · 1 Reply
• 1 Reply

• 

  Aniela

  Member

  October 7, 2025 at 8:51 am

  In my experience, BTMS is not so “willing” to melt, so I use a dedicated coffee grinder (wearing goggles, face mask, and gloves is a must- at least for me) to make things easier.

  It usually goes in the oil phase, but the melting point is quite high- the manufacturer says 80-85C (you could go up to 90C). Obviously, you need to use a thermometer to check the temperature.

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