Home Cosmetic Science Talk Formulating Hair Sodium Lauroamphoacetate

  • Sodium Lauroamphoacetate

    Posted by Zara on November 28, 2020 at 4:30 pm

    Hi everyone, 
    Has anyone worked with Sodium Lauroamphoacetate before? I’ve just bought some and made a small batch and it was too alkaline so I had to add more acid to neutralize it. I just have 2 questions. How do you add it to you formulas? Do you neutralize it before adding and when you add it.
    My formula has SCI, Sodium Lauroamphoacetate, Caprylyl/ capric glucoside and Cocamidopropyl Betaine.
    Thanks for your help in advance. 

    mhart123 replied 3 years, 6 months ago 3 Members · 3 Replies
  • 3 Replies
  • ketchito

    November 30, 2020 at 2:17 pm

    @Zara You don’t need to neutralize the ingredient before adding it to the formula, but you need to use more citric acid than expected to bring final pH to where you want. The high pH of the ingredient might be due to alkaline residues the manufacturer used to neutralize some acid they used through the manufacturing process. 

  • Zara

    December 1, 2020 at 3:17 pm

    @ketchito , Thank you for your response.
    I have one more question please. If you are going to add salt to your formula for thickening and acid to reduce the PH, which one has to be added first? I add the acid first and at the end I use the salt.
    Thanks in advance.

  • mhart123

    December 1, 2020 at 4:45 pm

    @Zara yes, adjust pH first and then viscosity

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