• Formulating

  Preserving a clay mask - combining preservatives and chelating agents advice

  Posted by FloraBL on December 20, 2023 at 8:59 am

  Hello, I am looking to make an emulsified clay mask but want to make sure I am creating a robust preservative system as the product would possibly contain botanicals, water and clay. This is what I started with for my formula originally, but as I am doing more reading I would want to add liquid germall plus or phenonip to the formulation:

  66.9% Chamomile Distillate (preserved with leucidal liquid)

  6.7% Emulsifying Wax Soft & Silky (Cetearyl Alcohol (and) Ceteareth-20)

  2.5% Stearic Acid

  14% Bentonite Clay

  7% Hemp Seed Oil

  1.6% Chamomile Extract

  1.1% Euxyl PE 9010

  0.2% Tetrasodium EDTA

  So my question is, what can I change in this formula in terms of preservation or removing botanicals to make it as stable and safe as possible? Planning on only using for personal use but I know clay is notoriously difficult to preserve. Thank you!

  PhilGeis replied 4 months, 1 week ago 3 Members · 2 Replies

  • clay
  • formulation
  • preservation
• 2 Replies

• 

  chemicalmatt

  Member

  December 20, 2023 at 12:27 pm

  You will first need to DEL that EDTA since it will be useless there with all that Mg++, Al+++ ions from the bentonite dispersion. As has been stated in this blog many times before: always add your preservative first before adding any clays since most will adsorb the preservative when added post. I’ll also suggest adding more fungi-fighter to this, such as IPBC or the “dreaded” methylparaben. I hope @PhilGeis can weigh in here too. He is the expert.

  • 

    PhilGeis

    Member

    December 20, 2023 at 6:55 pm

    Can’t add much more to what Matt said. 86 the EDTA - need something for the fungi - what’s pH and what is your po9licy as in parabens formaldehyde releasers etc.)??

    • This reply was modified 4 months, 1 week ago by  PhilGeis.

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