Home Cosmetic Science Talk Formulating Does cationic guar need high viscosity to be stable in shampoo

  • Does cationic guar need high viscosity to be stable in shampoo

    Posted by Abdullah on June 2, 2024 at 1:09 am

    I made 2kg shampoo sample yesterday. 1kg without NACL and 1kg with 1.5% NACL. I added NACL at the end. Cationic guar in sample without NACL precipitated in one day and the one with NACL and high viscosity is stable yet.

    My question is: does cationic guar in shampoo need high viscosity to be stable?

    Shampoo actives

    SLES 14

    CAPB 2

    Cationic guar 0.1

    Amodimethicone micro emulsion 0.2

    pH 5.5

    Abdullah replied 5 months, 2 weeks ago 3 Members · 3 Replies
  • 3 Replies
  • Unknown Member

    Member
    June 3, 2024 at 3:57 am

    I think it’s not about the viscosity. it’s about the ionic strength.

    • Abdullah

      Member
      June 3, 2024 at 10:52 pm

      Bothe have same amount of anionic surfactant and polymer

  • yyy

    Member
    June 3, 2024 at 4:33 am

    Just curious, how is the precipitation of guar looks like? By looking at your formulation, there is microemulsion of amodimethicone. I would say this is one of the ingredient that need some suspending agent to stabilise the shampoo system.

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