Home Cosmetic Science Talk Formulating Natural Deodorant Question

  • Natural Deodorant Question

    Posted by jsmith14 on September 6, 2018 at 1:20 am

    Hey All!

    I’ve been working on creating a natural deodorant and recently ran into an issue with the phases I use in creating it.  My old process worked decently well but my new process is creating issues. 

    Old Process

    I melt all my oil / wax ingredients in a double boiler up to 170 degrees Fahrenheit ( I use cera bellina wax with a max melting point of around 165 ). I then pour that mixture into a room temperature bowl and mix baking soda and arrowroot.  I proceed to pour that mixture into a deodorant stick and cool in the fridge.  

    New Process

    I melt all my oil / wax ingredients in a double boiler up to 170 degrees Fahrenheit ( I use cera bellina wax with a max melting point of around 165 ).  Instead of pouring the mixture into a new bowl I mix the powders into the double boiler.  I pour the mixture into a deodorant stick and cool.  

    My new process is causing the ingredients to separate while cooling.  I’m guessing the arrowroot should not be combined at around 170 F?  I tried cooling my mixture down to 120 F and combining the powders but when the mixture cooled it was a little more mushy and not solid like in my old process.  Any tips on what’s a good temp here?

    Ingredients are ( shea butter , coconut oil, fractionated coconut oil, jojoba oil, cera bellina wax, arrowroot, baking soda , hydrogenated castor oil, stearyl alcohol, vitamin e )

    Thanks!

    jsmith14 replied 6 years, 5 months ago 2 Members · 4 Replies
  • 4 Replies
  • MarkBroussard

    Professional Chemist / Formulator
    September 6, 2018 at 3:27 am

    You need to keep stirring continuously after you add the powders and keep stirring until the mixture cools down to about 45 degrees C and pour into containers at that temperature.

    It sounds like you are pouring at too high a temperature and the powders are dropping out of the mix.    

  • jsmith14

    Member
    September 6, 2018 at 6:57 pm

    Thanks for the response, Mark!  It sounds like you are recommending a cooler temperature for the pour.  I did heat the liquids/waxes to 120F and then add the powders but those bars came out too mushy. 

    I recently tested out having the liquids/waxes at 150F and then adding the powders in.  The bars came out decently well although I’m not sure the temp I poured at. 

    I guess my question is does the liquid/wax mixture have to be at a certain temperature when the powders are added?  It seems like I should be at around 150F - 160F when I add the powders which is the range of my highest melting point ( cera bellina ).

  • MarkBroussard

    Professional Chemist / Formulator
    September 6, 2018 at 8:19 pm

    Forgive me, but I can only relate to temperature in Centigrade.  If you heat to say, 80C to completely melt all the butters & waxes, it really does not matter at what temperature you add the powders as long as it is above 60C or so.  You must keep it stirring to get an even distribution of powders and then pour around 45C - 42C.  Your concoction should start solidifying around 40C - 38C … enough so that the powders will not drop out of the mix.

  • jsmith14

    Member
    September 6, 2018 at 9:16 pm

    Thanks, Mark.  This makes sense, I’ll adjust accordingly.  Any preference on the temperature to cool the stick at? 

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