Home Cosmetic Science Talk Formulating Advanced Questions Hand wash gone wrong - why?

  • Hand wash gone wrong - why?

    Posted by Merylin on March 16, 2020 at 12:43 pm

    I’m trying to formulate handwash:
    5.5% sodium coco-sulfate
    1% Coco-glucoside and glyceryl oleate
    1% Xanthan gum
    0.5% Sodium Benzoate and 
    1% Citric acid (50% solution)

    It looks fine after a few days.( pH is 5.00) But the problem is that, after a few weeks the solutions has become cloudy and there are lot of white pieces in it - like some salt has appeared all of a sudden. Are some ingredients incompatible? Does anyone have a clue?

    Merylin replied 4 years, 4 months ago 3 Members · 4 Replies
  • 4 Replies
  • OldPerry

    March 16, 2020 at 12:50 pm

    Did you do a preservative / microbial test?  It could be microbial contamination.

  • Merylin

    March 16, 2020 at 2:41 pm

    Preservative description remained incomplete - I’m using Sodium benzoate and Potassium sorbate blend. 

    @ Perry No, I haven’t made a microbial test. I’m gonna do it right now!  Thank you for the tip.

  • Bill_Toge

    March 17, 2020 at 1:13 am

    what’s the pH?

  • Merylin

    March 17, 2020 at 7:15 am

    @Bill_Toge pH is 5, even after the white pieces appeared.

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