Home Cosmetic Science Talk Formulating How work with emulsions w/o, o/w

  • How work with emulsions w/o, o/w

    Posted by BeardlyGentlemen on January 21, 2019 at 12:38 pm

    Hi, I’m in novice emulsions, but they are very interesting to me and I would like to learn how to make high-quality emulsions oil-in-water and water-in-oil.
    I would be grateful for any help.
    Questions that interest me first:
    1) how to determine the mixing temperature correctly, that is, at what temperature should the mixing be performed?
    2) how to carry out the mixing process, immediately pour in or gradually, or maybe even like that?
    3) how to mix properly, what is the intensity, how much time, whether to mix after removing from heat until partially cooled.
    4) maybe it is worth mixing at the time of injection of one phase into another?
    I ask you to treat these issues normally, since you are experienced chemists, and I am just a novice, but with a very great desire to learn.
    Thank you in advance for all the help and tips

    em88 replied 5 years, 4 months ago 7 Members · 19 Replies
  • 19 Replies
  • ngarayeva001

    Member
    January 21, 2019 at 3:14 pm

    - W/O is not for beginners.
    - O/W mix togeher and apply high shear. Temperature depends on materials and there is no one size fits all rule.

  • EVchem

    Member
    January 21, 2019 at 4:41 pm

    I would take a look at some sites where you can find cosmetic formulas and see what procedures they follow to get started. It’s also going to be easier if you have a goal product in mind- do you want to make lotions, serums, pomades, cleansers?? 

    Perry has links to where you can find cosmetic formulas to start, you can also look around on the forum and see what’s been posted here. 
    Answers to your questions are going to depend on the ingredients you have/ want to work with

  • Dirtnap1

    Member
    January 21, 2019 at 6:19 pm

    There are a few bloggers/sites that have some great content. One blog now requires a small subscription fee for more indepth resources, but she has a lot of great articles for beginners and advanced formulations etc. https://swiftcraftymonkey.blog/blog/

    https://www.humblebeeandme.com/

    Obviously, many of the formulas will be geared towards the home hobbiest, but will aquaint you to many of the more technical processes. 

  • BeardlyGentlemen

    Member
    January 22, 2019 at 10:10 am

    @ngarayeva001 O/W mix togeher and apply high shear. Do you mean to mix well for a long time at high revs?

  • BeardlyGentlemen

    Member
    January 22, 2019 at 10:10 am

    @EVchem now i want to make waterbase pomades, but my emulsions not good…

  • BeardlyGentlemen

    Member
    January 22, 2019 at 10:12 am

    @Dirtnap1 thanks, i’ll learn it.

  • BeardlyGentlemen

    Member
    January 22, 2019 at 10:12 am

    @ngarayeva001, @Evchem, @Dirtnap1 Thank you all for answers.

  • em88

    Member
    January 22, 2019 at 12:53 pm

    Well, if you use lanolin and a small amount of water, you can make w/o emulsions pretty easy. 

  • jeremien

    Member
    January 22, 2019 at 1:24 pm

    ngarayeva001 why do you consider W/O more difficult?

  • ngarayeva001

    Member
    January 22, 2019 at 1:27 pm

    I mean homogenizer, or a stick blender for home crafters. But
    keep in mind that some ingredients (including certain polymers) do not tolerate
    high shear. High shear breaks oil into small droplets. Small droplets mean more
    stable emulsion.

  • ngarayeva001

    Member
    January 22, 2019 at 1:29 pm

    @em88, agree. I was thinking about high internal phase W/O emulsions.

  • BeardlyGentlemen

    Member
    January 22, 2019 at 6:13 pm

    @em88 i yyet dont use lanoline, how to use him?

  • BeardlyGentlemen

    Member
    January 23, 2019 at 1:03 pm

    Also answer, do i must take distalated water for my emulsions? Am i wright?

  • Doreen

    Member
    January 23, 2019 at 2:03 pm

    @ngarayeva001
    Why wouldn’t W/O emulsions be for beginners? High internal phase or not?

  • ngarayeva001

    Member
    January 23, 2019 at 3:32 pm

    @Doreen because

    -some of the materials have to be processed in a particular way (adding water by drops),
    -not a lot of information can be found online,
    -not too many good materials are available on DIY market (#wouldkillforeasinov :smiley: ) 
    - not too many oil compatible thickeners 
    - some formulations are sensitive to processing (visocity changes depending on the temperature when phases were combined).

    This is my experience. Please correct me if I am wrong.

  • Doreen

    Member
    January 23, 2019 at 3:41 pm

    - Adding water by drops can’t be done by a beginner?
    - There is a lot of good information online, you just need to know where to look.
    - Easynov isn’t the only W/O emulsifier out there.
    - What ‘oil compatible thickeners’ do you mean that there aren’t too many of?
    - That doesn’t solely count for W/O’s. 

  • em88

    Member
    January 23, 2019 at 4:25 pm

    @em88 i yyet dont use lanoline, how to use him?

    Lanolin is a viscous emulsifier that can absorb about 200% water. 
    Working with lanolin is very easy, is similar as with petrolatum. 

  • BeardlyGentlemen

    Member
    January 23, 2019 at 4:43 pm

    @88, I look what i get in my country, this is 3 different lanoline: 1) water free lanoline, 2) lanoline and 3) dry lanolin. What can i use, thanks for answer.

  • em88

    Member
    January 23, 2019 at 8:27 pm

    @88, I look what i get in my country, this is 3 different lanoline: 1) water free lanoline, 2) lanoline and 3) dry lanolin. What can i use, thanks for answer.

    I’d go for anhydrous lanolin. First choice. 

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