ngarayeva001

I am a self-taught formulator absolutely obsessed with skin care J. I am still learning, but  can answer simple questions and help newbies with their formulas and happy share my successful formulas (as I was there myself recently). I understand something about oil in water emulsions and basic surfactants. I don’t have any experience with water in oil formulas and colour cosmetics. I personally prefer conventional formulas (aka “chemicals”) but have some basic understanding of “natural” ingredients.

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ngarayeva001
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  • amitvedakar
    Hello!
    I want to make thick Glycolic acid 3% face wash.
    my formula.
    SLES27%---25%
    Polyquote 7-2%
    Cocodiethanolamide --3%
    Cocamidopropyl Betaine--3%
    Glecerin-6%
    Disodium Cocoamphodiacetate --0.6%
    carbomer st-100---3%
    (ph independent carbomer-thickner)
    vit.E-0.25%
    Niacinamide--2%
    mehtyl paraben, EDTA, 

    Result not satisfactory.

    What can u Suggest?
    What changes are required?
    Thank You.



    August 10
    • Dtdang
      Dtdang
      I do not know the synthetic ingredients. Therefore I am sorry that I cannot help you.
      But, my thought is that you must keep pH at final product at about 3.8 to 4. The reason is that at pH = pKa glycolic acid is most effective.
      Can you explain each chosen ingredients in your formula?
  • Belassi
    Hi. Have you researched the maximum concentration of alpha arbutin we should use? 2%?
    September 17
    • ngarayeva001
      ngarayeva001
      Hi, I have not find a legit study that comments on concentration. However all suppliers I know recommend 2%. The Ordinary also use 2%. They are known for using very high (sometimes unnecessary high) concentrations of actives in their formulas. I read somewhere that using more than 4% is not recommended by dermatologists but can’t comment on the sourse.
  • sven
    Hi I am following your discussion around brightening serums. Just to ask: do you call it a brightening serum for marketing purposes? You use hyaluronic acid in this formulation? Thinking of doing something for dark marks in ethnic skin
    September 9
    • ngarayeva001
      ngarayeva001
      The one I made with alpha arbutin, MAP, niacinamide and NAG contains strong actives at a high concentration. It actually makes skin lighter. I would not claim that its a drasting effect but definitely stronger than most of brightening products in the market. I did quite a lot of research to select these four (they have same pH requirement and watersoluble) However, as far as I understand, ethnic skin has its specifics. For example kojic acid is more effective on ethnic than on caucasian skin. Also, if taking about vitamin c derivatives I use MAP because it is better for overall brightening. There is another derivative that is better for dark spots. So, you should do your research for ethnic skin.
    • sven
      sven
      thanking you so very much
  • I am a self-taught formulator absolutely obsessed with skin care J. I am still learning, but  can answer simple questions and help newbies with their formulas and happy share my successful formulas (as I was there myself recently). I understand something about oil in water emulsions and basic surfactants. I don’t have any experience with water in oil formulas and colour cosmetics. I personally prefer conventional formulas (aka “chemicals”) but have some basic understanding of “natural” ingredients.

    September 6
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    September 3