Home Cosmetic Science Talk Formulating Does this product need a preservative ❓

  • Does this product need a preservative ❓

    Posted by emma1985 on March 6, 2022 at 7:32 pm


    Before I ask my question I just want to say I love preservatives. I have no issue with them. I’m not a “natural formulator.” I use formaldehyde releasers like Germall and parabens like Phenonip all the time. I’m not trying to avoid using a preservative.

    The product is a lip gel containing 15% Sapogel Q, 2% powders like silica and lip safe mica, 2% Glycerin and 81% plant oils.

    I’m not adding any water but the Sapogel Q contains water.

    I’m not making this product to sell. It will only be me using it and I might give some away to friends and family.

    I’m asking because lip safe preservatives are far and few between. I have some Geogard ECT on the way but I have no idea if this product will tolerate Geogard (Sapogel Q is a bit precarious/intolerant in my experience.) 

    I do use Liquid Germall Plus in my Sapogel products all the time with no issues.

    Please let me know what you think, thank you!! ❤️

    Sapogel Q INCI: Glycerin, Water, Quillaja Saponaria Wood Extract, Saponaria Officinalis Leaf/Root Extract 

    PhilGeis replied 2 years, 3 months ago 3 Members · 4 Replies
  • 4 Replies
  • Pharma

    March 7, 2022 at 6:06 am
    Glycerin seems to do the job or Alchemy would likely have added a preservative to the Sapogel Q already.
    However, I would indeed consider a preservative due to the presence of those powsers which may result in an unequal distribution of water and glycerin (on a microscopic scale).
    Sapogel Q on the lips… doesn’t that taste ‘scratchy’?
  • emma1985

    March 7, 2022 at 6:13 am

    No, it’s incredibly smooth. Just like lip gloss but so much less sticky.

    Thank you so much. 

    Do you think it’s better to skip the additional Glycerin then?

  • emma1985

    March 7, 2022 at 6:14 am

    I just tried it again and it has literally no flavor that I can detect. ???? I suspect if anything will impart flavor it will be the plant oils.

  • PhilGeis

    March 7, 2022 at 10:12 am

    Glycerine from Sapogel + 2% is prob irrelevant - great if you could get Aw data but I know that’s not generally available.
    What’s powder bioburden?
    Hot fill ?  Does it appears to take up water?

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