Home Cosmetic Science Talk Formulating Stabilizer in emulsions/creams

  • OldPerry

    Member
    September 23, 2020 at 12:35 pm

    Carbomer.  0.2%
    But what you use and how much depends on what else is in the formula.

  • AndrewSeel

    Member
    September 23, 2020 at 7:27 pm

    Perry said:

    Carbomer.  0.2%
    But what you use and how much depends on what else is in the formula.

    Perry how do you add Carbomer to waTer phase before emulsification or we should add carbomer gel after emulsification of emulsions like creams?

  • AndrewSeel

    Member
    September 23, 2020 at 7:28 pm

    I Add modified starch to stabilize emulsion

  • OldPerry

    Member
    September 23, 2020 at 9:14 pm

    Carbomer is added to the water before adding any other ingredient.

  • Ifa

    Member
    September 24, 2020 at 4:06 am

    Perry said:

    Carbomer is added to the water before adding any other ingredient.

    Carbomer is generally incompatible with many ingredients, right?

  • OldPerry

    Member
    September 24, 2020 at 2:26 pm

    I guess that depends on what type of ingredients you are talking about.
    Carbomer is compatible with non ionic materials. It can also be compatible with anionic materials.  It just doesn’t work well with certain ions like salts. And it has to be neutralized.  But lots of cream emulsions are stabilized with Carbomer.

  • belassi

    Member
    September 24, 2020 at 6:13 pm

    with correct emulsion design there’s no need for stabilisers.

  • dreamstar

    Member
    September 25, 2020 at 1:23 am

    This is going to be a very basic question…

    What do stabilizers do?

  • Padmavathi

    Member
    September 25, 2020 at 10:36 am

    Carbomer works!
    I usually prepare a 2% solution and keep (with preservative).  I add how much I need of this solution, post emulsification, depending on the viscosity I want, and adjust pH.
    From what I have observed, the final product thickens the next day. So I’d say don’t add too much.

  • Pattsi

    Member
    September 25, 2020 at 12:11 pm

    dreamstar said:

    This is going to be a very basic question…

    What do stabilizers do?

    @dreamstar
    https://quizlet.com/85468355/emulsification-and-stabilizers-food-tech-a2-flash-cards/

  • dreamstar

    Member
    September 26, 2020 at 2:39 am

    Thank you for the link. That was very educational.

    So, get this…

    As I’m reading, I’m realizing this is exactly what I need. HAHA!!!

    I’m currently formulating a few tests and one of them is meant to be very “runny” - so the water content is very high. However my problem is the emulsion separates after a few hours , and the water goes in the bottom.

    It seems I need a stabilizer perhaps. How can I solve this?

    Here is the formula:

    A
    -water 85%
    -beta glucan 6%
    -GSB 2%

    B
    Meadowfoam oil 4%
    Macadamia oil 2%
    NatureMulse 1% 

  • Pattsi

    Member
    September 28, 2020 at 11:04 am

    @dreamstar - i think NatureMulse 1% is not enough to make a stable emulsion i have never used it but guess it should be 3-5% or need to add fatty alcohol or add gum would do, you have to try.

    btms50 , emulsimulse , Aracel165 - might start with smthing basic and easy first then step up with more fancy stuff.

    Happy formulating  :) :) :)

  • ngarayeva001

    Member
    September 30, 2020 at 6:14 am

    If it’s an emulsion carbomer, xanthan and polymeric emulsifiers can all go to oil phase. They disperse  much better this way.

  • Learntounlearn

    Member
    October 20, 2021 at 12:45 pm

    Carbomer works!
    I usually prepare a 2% solution and keep (with preservative).  I add how much I need of this solution, post emulsification, depending on the viscosity I want, and adjust pH.
    From what I have observed, the final product thickens the next day. So I’d say don’t add too much.

    Hi, 
    I always wanted to work with carbomers but the thought of neutralization of to form a gel holds me back. Your approach seems interesting so
      please explain how you prepare your carbomer’s stock solution.
    What bases can be used?
    Also does adding a 0.5% or above of this stock to an emulsified cream/lotion, thickens it?
    Thanks

  • Graillotion

    Member
    October 21, 2021 at 5:51 am

    Carbomer works!
    I usually prepare a 2% solution and keep (with preservative).  I add how much I need of this solution, post emulsification, depending on the viscosity I want, and adjust pH.
    From what I have observed, the final product thickens the next day. So I’d say don’t add too much.

    Hi, 
    I always wanted to work with carbomers but the thought of neutralization of to form a gel holds me back. Your approach seems interesting so
      please explain how you prepare your carbomer’s stock solution.
    What bases can be used?
    Also does adding a 0.5% or above of this stock to an emulsified cream/lotion, thickens it?
    Thanks

    Why are you not just using the beginner version… The preneutralized version…toss it in…and foe-get-about-it!

    Sodium Carbomer, Preneutralized Carbomer | Lotioncrafter

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