• Emulsion

    Posted by SpicyKimchi on September 12, 2016 at 6:13 pm

    What kind of emulsifier should I look into trying to mix grape seed oil, water abd a mica formulation. 

    belassi replied 7 years, 6 months ago 4 Members · 14 Replies
  • 14 Replies
  • bobzchemist

    Member
    September 12, 2016 at 6:22 pm

    You need a suspending agent and an emulsifier. Look for starting formulations that use Veegum HV.

  • SpicyKimchi

    Member
    September 12, 2016 at 6:24 pm

    Thank you Bob! You’re such a help! I’ve been studying for weeks to get myself comfortable with terminology and everything and this forum (you included) has been so great for pointing me in the right direction 

  • SpicyKimchi

    Member
    September 12, 2016 at 9:49 pm

    Bob I figured I’d just ask you this instead of starting a new thread. 
    How do I get rid of bubbles in a lotion? 
    I made an eyeshadow primer using aloe vera gel (a premade that has a preservative in it) and I mix in arrow root powder and natural clay/kaolin clay. When I hand mix it it gets bubbles. Should I use the mini coffee grinder I have or try a blender? What causes the bubbles to form? 

  • SpicyKimchi

    Member
    September 12, 2016 at 9:52 pm
  • belassi

    Member
    September 12, 2016 at 11:12 pm

    I made an eyeshadow primer using aloe vera gel (a premade 
    - and what exactly is in that?

  • oldperry

    Member
    September 13, 2016 at 12:24 am

    Don’t use a hand mixer.

    If you are going to make cosmetics you’ll need an overhead mixer like these http://www.caframolabsolutions.com/products/

    Bubbles are caused by the mixer drawing air into the formula.

  • SpicyKimchi

    Member
    September 13, 2016 at 2:55 am

    I used Lilly of the valley 99% aloe gel 

  • belassi

    Member
    September 13, 2016 at 3:29 am

    Yes but we need to know what is in that, why is it a gel, does it for instance have carbomer, or is it just the extract, concentrated.

  • bobzchemist

    Member
    September 13, 2016 at 4:34 pm

    To get bubbles out you can use a vacuum pump and vacuum jar:

    But the best way is to make sure they don’t get in in the first 

  • SpicyKimchi

    Member
    September 13, 2016 at 7:49 pm

  • SpicyKimchi

    Member
    September 13, 2016 at 7:54 pm

    Would a shake mixer work as a stand in for an overhead mixer? I have an all metal one that would traditionally be used for making ice cream shakes. 

  • belassi

    Member
    September 13, 2016 at 11:45 pm

    It’s the CARBOMER! You cannot get bubbles out of carbomer once they’re in there.

  • bobzchemist

    Member
    September 14, 2016 at 3:44 pm

    Well, actually you can…but not in the lab, and not cheaply. It’s much, much more cost-effective to not get the air in there in the first place. But if you can’t avoid aeration, and the air has to come out - you need one of these plus a strong pump:

    VERSATOR

  • belassi

    Member
    September 14, 2016 at 5:18 pm

    Clever device, it will need a big roughing-pump.

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