Preservative for an O/W emulsion with 20% of Kaolin clay

Hi All,

I formulated face gommage (gentle scrub) with a high content of clay. This is a O/W emulsion and I am concerned about preservative. As far as I know it is difficult to preserve clay. I can not decrease it's amount, because it's a buffer scrub and it suppose to peel off, so I need quite a lot of clay. Currently I preserve it with Phenoxyethanol & Ethylhexylglycerin, but I suspect it's not enough. Would parabens be more effective, or I should use a combination of parabens and Phenoxyethanol & Ethylhexylglycerin?

Aqua 59.80%
Cetearyl alcohol and PEG-20 Stearate 8.00%
Fractionated coconut oil 6.00%
Cetyl Alcohol 5.00%
Tocopherol 0.20%
Kaolin Clay 20.00%
Phenoxyethanol & Ethylhexylglycerin 1.00%
Jojoba beads qs
 
Thank you in advance!

Comments

  • Guys, sorry for bringing it up, but please if someone has any experience with preserving clays, any advice is highly appreciated!
  • edited October 11
    @ngarayeva001 parabens will be sure cause already i see industriel clay using as preservative parabens . however i will try to make it with cathon CG cause i find it more secure.
  • Thank you @Fekher. The suppliers from which I order unfortunately do not have it. I will try my blend of parabens and phenoxyethanol together and hope for the best. I guess I finally have to order microbial kit for this... The benchmark product is preserved with parabens.
  • edited October 11
    you are welcome @ngarayeva001 and this is a good new  for you.
     So as conclusion  you can use a blend in % between 0,4 and 0,7 to preserve your emulsion.


  • Wow!!! That's a strong one! I have a blend of Methylparaben and Propylparaben. Will add phenoxyethanol and hope it would work. But I will definitely try to find it. It looks like it can kill anything :)
  • Thank you @Fekher I found it. It's sold under commercial name phenonip on lotioncrafter.

    https://www.ulprospector.com/en/na/PersonalCare/Detail/1022/42562/Phenonip
  • @ngarayeva001 have a nice work.
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