Home Cosmetic Science Talk Formulating Hair High sodium citrate in P&G shampoo

  • High sodium citrate in P&G shampoo

    Posted by abdullah on March 30, 2024 at 8:55 pm

    This is ingredients list of a herbal essences shampoo. The second ingredient after primary surfactant is sodium citrate so it might be ≥1%. <div>

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    What is the benefit of this high amount of sodium citrate in a shampoo?

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    Ingredients/ingrédients: Water, Sodium Laureth Sulfate, Sodium Citrate, Sodium Lauryl Sulfate, Glycol Distearate, Cocamidopropyl Betaine, Sodium Chloride, Cocos Nucifera (Coconut) Fruit Extract, Zea Mays (Corn) Silk Extract, Orchis Mascula Flower Extract, Fragrance, Cocamide MEA, Sodium Xylenesulfonate, Dimethicone, Sodium Benzoate, Citric acid, Tetrasodium EDTA, Guar Hydroxypropyltrimonium Chloride, Polyquaternium-6, Methylchloroisothiazolinone, Methylisothiazolinone, Blue 1.

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    https://herbalessences.com/en-us/our-products/hello-hydration-2-in-1/

    abdullah replied 1 week, 4 days ago 4 Members · 10 Replies
  • 10 Replies
  • mikethair

    Member
    March 31, 2024 at 1:14 am

    My guess is to control pH.

  • fekher

    Member
    March 31, 2024 at 3:11 am
  • abdullah

    Member
    March 31, 2024 at 6:41 pm

    Thanks.

    I think there should be something else that citric acid do from a rinse of prod8.

  • abdullah

    Member
    March 31, 2024 at 6:51 pm
  • ketchito

    Member
    April 1, 2024 at 6:39 am

    It’s also added to increase viscosity. I used to do that in a liquid dishwasher. You can also check some patents from P&G and they will mention the same.

    • abdullah

      Member
      April 1, 2024 at 10:11 am

      I saw 1% citric acid in an example formula in one of their parents buy the patent was about something else.

      I am wondering if it can be beneficial as a water softener and also to remove cation ions so if you apply a cationic surfactant conditioner after shampoo, it deposit more. What is your opinion on this?

    • fekher

      Member
      April 1, 2024 at 11:16 am

      @ketchito Why not using slat vs sodium citrate for increasing the viscosity?

      You are welcome @Abdullah what I shared says that it is softener for water, then I did not understand your last question.

      • abdullah

        Member
        April 1, 2024 at 8:29 pm

        I also think that it will be for water softening but as it has EDTA and and 0.1-0.2% percentage of of it is enough to make the product water soft, what will be this high amount of citric acid doing.

        It is highest after SLES.

  • ketchito

    Member
    April 2, 2024 at 12:10 am

    They use sodium citrate with citric acid to create a buffering system. As a side benefit, sodium citrate can sequester cations (water softening) and help to build some viscosity. Using it mainly as a water softening agent is not advisable since it forms weak complexes with metal ions comparado to EDTA.

    • abdullah

      Member
      April 2, 2024 at 2:20 am

      Thanks

      Do you know any patent with ≥1% citrate in shampoo?

      Please share if you have

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