• Formulating

  Thickness of liquid Hand wash does not sustain

  Posted by Anonymous on April 5, 2019 at 1:37 am

  I am
  formulating a herbal hand wash with following ingredients

  1)     Aloe vera extract : 240 ml

  2)     Decyl Glucoside : 60 ml

  3)     Guar Gum : 10 gm

  4)     Glycerine : 7.5 ml

  5)     Fragrance : 20 drops

  My motto is
  to keep number of ingredients to minimum. I have following questions / problems.
  Shall be thankful to have answers to the same.

  1)     The combination is perfectly thick
  when fresh. But as the time passes, (10 to 12 days) it stats thinning or
  separating. Shaking helps but that is not the expected solution.

  2)     pH of my final formula is in the
  range of 4.5 to 5. I think this is in tune with the pH of human skin. Am I
  right? & is this approach scientific?

  3)     I am making general purpose hand
  wash. Should every soap formulation be antimicrobial as well?

  Dr Catherine Pratt replied 5 years, 6 months ago 3 Members · 3 Replies

  • formula help
  • liquid-hand-wash
  • natural ingredients
  • ph
  • stability
• 3 Replies

• 

  tarunj

  Member

  June 1, 2019 at 7:33 am

  Make sure you are using a Cosmetic Grade Guar Gum or Cationic Guar Gum as regular guar gum is susceptible to microbial attack and hence the loss of viscosity. Would also be a good idea to use a biocide. 

• 

  OldPerry

  Member

  June 1, 2019 at 4:40 pm

  If you want to take a scientific, minimalist approach to formulating, you start with the functional ingredient and build from there. That is the decyl glucoside. Don’t use aloe vera extract when deionized water will work.  Aloe extract provides no benefit.  Similarly, don’t add glycerine since it just gets washed away.  And add a preservative.

• 

  Dr Catherine Pratt

  Member

  June 1, 2019 at 6:07 pm

  Have you hydrated the Guar gum properly? What are your methods in doing so? Then I can help you.

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