Home Cosmetic Science Talk Formulating Disodium laureth sulfosuccinate pH stability

  • Disodium laureth sulfosuccinate pH stability

    Posted by Abdullah on August 3, 2021 at 6:49 am

    What is the lowest pH at which we can make a stable shampoo with disodium laureth sulfosuccinate at 5% active surfactant level or lower? 

    my current shampoo has pH of 5.1. I want to add disodium laureth sulfosuccinate but they say it is not stable at low pH. 

    Abdullah replied 2 years, 10 months ago 3 Members · 4 Replies
  • 4 Replies
  • ngarayeva001

    Member
    August 5, 2021 at 10:46 pm

    It should be above 7. I tried to reduce it to 6 once and the product changed smell and colour. It’s a nice surfactants (goes well in face washes) but it’s pretty ph sensitive unfortunately.

  • Abdullah

    Member
    August 6, 2021 at 12:41 am

    @ngarayeva001 so it will be pretty hard to preserve and also not so gentle because of high pH. 

  • DFX

    Member
    August 22, 2021 at 8:33 pm

    There are products like Rewopol SB FA, Texapon SB 3 with the slightly acidic pH, preserved with sorbates. Check the TDS or SDS. I Think, it has to be OK.

  • Abdullah

    Member
    August 23, 2021 at 2:51 am

    @DFX thanks

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