Home Cosmetic Science Talk Formulating body wash viscosity- surfactant or thickener?

  • body wash viscosity- surfactant or thickener?

    Posted by mmarr on August 28, 2023 at 10:17 pm

    Hi everyone, i am facing problem where our production body wash does not reach the viscosity desired. its still quite new formulation. last time, we did the production for body wash, the viscosity every batches almost similar. but this time the viscosity very low compared to last time. last time around 10000 cp, this time 3000cp only. Anyone know why this happened? is it probably because of thickener or surfactants?

    formulation

    water-qs

    glycerin-2

    edta-0.1

    peg-150 pentaerythrityl tetrastearate-1.0

    polyacrylate crosspolymer-6 - 0.5

    lauryl betaine-8

    Disodium laureth sulfoccinate-5

    lauryl glucoside-3

    sodium cocoyl methyl taurate-3

    olive oil peg-7 esters-0.5

    pq7-1.0

    preservative

    thank you in advance

    Bureta14 replied 9 months, 1 week ago 5 Members · 6 Replies
  • 6 Replies
  • ketchito

    Member
    August 29, 2023 at 5:32 am

    I’d add your Lauryl betaine almost at the end, followed by peg-150 pentaerythrityl tetrastearate (in case you’re using the liquid version).

    • mmarr

      Member
      August 29, 2023 at 7:12 pm

      do u mean that the sequences also play a role for the visco? btw, im using flakes version for peg-150

  • Formulator

    Member
    August 29, 2023 at 7:27 pm

    Try checking a sample of new and previous batch at exactly the same temperature, e.g., 25 °C. Even 1°C difference can have a noticeable impact with PEG-150 Pentaerythrityl Tetrastearate.

    • mmarr

      Member
      August 29, 2023 at 7:36 pm

      we do actually tried to test the visco using same temperature. still a lot of different.

  • DanielMiller

    Member
    September 15, 2023 at 3:02 am

    Any update?

  • Bureta14

    Member
    September 18, 2023 at 9:13 am

    You could replace the PEG-150 Pentaerythrityl Tetrastearate with Versathix (PEG-150 Pentaerythrityl Tetrastearate (and) PPG-2 Hydroxyethyl Cocamide (and) Water), and it can be added at the end because it is cold processed.

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