Home Cosmetic Science Talk Formulating Hand sanitizer

  • Hand sanitizer

    Posted by Eleanor on September 27, 2020 at 8:23 pm

    Hello everyone,
    Tried formulating hand sanitizer with 75% ethanol in the end product but I got a cloudy gel. Don’t know what I am doing wrong. Below is the list of ingredients used in %:
    Ethanol (95%)78
    Water 18.5
    Propylene glycol 2
    Glycerin 0.5
    Carbopol (ultrez 20) 0.3
    Amino methyl propanol 0.1
    Lemon grass and sweet lemon fragrance 0.15%
    Mixed carbopol and water, allowed to self wet then added ethanol, PPG, glycerin, fragrance and lastly AMP. Result is a lot of bubbles and cloudy sanitizer. Please what am I not doing right? 

    belassi replied 4 years, 7 months ago 3 Members · 2 Replies
  • 2 Replies
  • AuroraBorealis

    Member
    September 28, 2020 at 1:50 am

    Best guess is that fragrance and oil need to be pre-solubilized separately. Do things step wise so you can determine at what step the formula becomes cloudy and then we can better help fix it. 

  • belassi

    Member
    September 28, 2020 at 11:48 pm

    Shouldn’t the order of addition be to neutralise before adding alcohol? It’s probably the fragrance though.

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