Home Cosmetic Science Talk Formulating Toner precipitation

  • Toner precipitation

    Posted by crisbaysauli on October 6, 2015 at 6:51 am

    Hello everyone. I have a problem with the facial toner I’m formulating. The formula contains only 2 plant extracts and 1 preservative. It is alcohol-free. Problem is, after 1 month at room temperature, fiber-like “precipitates” began to settle at the bottom of the PET bottle we are using. Can you help me solve this problem?

    DavidW replied 8 years, 1 month ago 5 Members · 4 Replies
  • 4 Replies
  • AuroraBorealis

    October 6, 2015 at 1:05 pm

    Please include the formula. We have no information to speculate anything. 

  • Bobzchemist

    October 6, 2015 at 3:17 pm

    Even without the formula, I’d be leaning towards a yeast/mold contamination as the problem.

  • chemist77

    October 10, 2015 at 11:52 am

    As @Bobzchemist said it might be a type of contamination, use dip slides from Schülke & Mayr and you would have the results within 24-48 hours of incubation. If not then you need to put the formula up here so that non-speculative suggestions can be made. 

  • DavidW

    October 10, 2015 at 12:57 pm

    Please list your other ingredients

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