Home Cosmetic Science Talk Formulating Add Polyquaternium-10 at the beginning or at the end?

  • Add Polyquaternium-10 at the beginning or at the end?

    Posted by Gunther on June 29, 2019 at 4:27 pm

    Most formulas add PQ-10 at the beginning
    can you add it at the end since it builds up viscosity?

    How much water should you use to predilute it it, if added at the end?
    It comes in powder form.

    Gunther replied 4 years, 10 months ago 5 Members · 6 Replies
  • 6 Replies
  • Gene

    June 29, 2019 at 10:23 pm

    We put it in shampoo at the end pre-stirred into the ‘cones, preservative, etc.

  • ngarayeva001

    June 30, 2019 at 12:17 pm

    Yes, you can add it in the end. You can slurry it in glycerin like xanthan. Regarding how much water, don’t worry if you have clumps. Leave the shampoo overnight and PQ10 will hydrate.

  • sven

    June 30, 2019 at 6:00 pm

    Vanilla add right in the beginning. Would be interested to know how it would work best when adding at the end in the final phase with the fraq, preservatives etc

  • chemicalmatt

    July 3, 2019 at 4:34 pm

    I can’t see Polyqyuat-10 fully hydrating when adding at the end, especially the high MW stuff. ALWAYS add into water only at RT in the first step, mix well while gently heating until fully dispersed and hydrated before adding any other ingredient. Same is true for virtually all polymers and resin gums. Another factoid regarding Polyquaternium-10: do not add chelant (EDTA) to your water before adding/mixing/hydrating or it will take 3X longer. Don’t know why but it does.

  • sven

    July 3, 2019 at 4:43 pm

    @chemicalmatt nice tidbit that  :)

  • Gunther

    July 6, 2019 at 6:13 pm

    Nice, thaks a lot.

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