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Home Cosmetic Science Talk Formulating Lotion Emulsifier Guidelines with Active Ingredients?

  • Lotion Emulsifier Guidelines with Active Ingredients?

    Posted by Silkster on June 7, 2016 at 7:21 pm

    Hi there,

    I was wondering whether anyone could share thier insights into whether there are any rules for determining incompatibilities between emulsifiers like Polawax, Ritamulse SCG, BTMS-50, BTMS-22 and active ingredients like plant extracts?

    I am currently thinking of using BTMS-50 as my emulsifier and wanted to be sure that it won’t inactivate any actives in my lotion like essential oils or green tea extracts. I know BTMS-50 contains behentrimonium methosulfate, a cationic quaternary compound.

    Is there general rule about combining cationic ingredients and actives? I know that they can inactivate some preservatives.

    OldPerry replied 6 years, 12 months ago 3 Members · 2 Replies
  • 2 Replies
  • Bobzchemist

    Member
    June 8, 2016 at 1:41 pm

    Here’s the thing - 99% of “active” ingredients, like essential oils or plant extracts, do absolutely nothing. This is actually a good thing, because if they did really effect the body, it would be illegal to use them in cosmetics in the US.

    Make a good emulsion, get it stable, and don’t worry about the “active” ingredients.

  • OldPerry

    Professional Chemist / Formulator
    June 8, 2016 at 9:59 pm

    What Bob said ^^^