Home Cosmetic Science Talk Formulating General preservative for liquid soap done with KOH

  • preservative for liquid soap done with KOH

    Posted by elias on March 18, 2014 at 4:49 pm

    do i need a preservative for liquid soap done with KOH?

    elias replied 10 years, 3 months ago 2 Members · 6 Replies
  • 6 Replies
  • MakingSkincare

    Member
    March 18, 2014 at 5:43 pm

    what pH is it??

  • elias

    Member
    March 18, 2014 at 5:45 pm

    about 8-9

  • MakingSkincare

    Member
    March 18, 2014 at 5:51 pm

    Yes you will need to add a preservative.  Most preservatives have pH restrictions so you will need to choose one which can cover pH9.  You will find reviews of 27 preservatives and the pH ranges for them here: -


  • elias

    Member
    March 19, 2014 at 12:54 am

    witch one suitable if i add to soap polysorbate 20?

     
  • MakingSkincare

    Member
    March 19, 2014 at 7:03 am

    Elias - It’s all detailed in the above webpage.

  • elias

    Member
    March 19, 2014 at 10:47 am

    Thank you

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