Home Cosmetic Science Talk Formulating Food preservatives for Cosmetics

  • Food preservatives for Cosmetics

    Posted by Devansh7 on May 7, 2020 at 12:42 pm

    Hello all.  
    I’ve been working on a cleansing formulation using coco glucoside(0.4%) 
    Humectants ( Propylene Glycol and Glycerol)
    Aqua.
    Ph is between 3-4.

    We want to use food preservatives. 
    Would a blend of benzyl alcohol+sodium benzoate + sodium salt of dehydroacetic acid work well for a shelf life of 1+ years?

    What should be an ideal ratio in the blend?

    Chemist77 replied 4 years, 1 month ago 6 Members · 8 Replies
  • 8 Replies
  • OldPerry

    Member
    May 7, 2020 at 12:54 pm

    You can try it. Some people have successfully used preservative systems like that. Of course, it also depends on what else is in your formula.

  • Devansh7

    Member
    May 7, 2020 at 1:08 pm

    Hello Perry. 
    Here’s the formulation:
    Coco glucoside 0.4g/100g
    Glycerol 4g/100g
    Propylene glycol 1g/100g
    Lactic acid to keep the pH between 3-4
    Aqua : rest.

    should I be sure that benzyl alcohol+ sodium benzoate + sodium salt of dehydroacetic acid would work because time is against my Side..

    Also any source to know what blend would be the best with absolute certainty? 
    Thanks!

  • DRBOB@VERDIENT.BIZ

    Member
    May 7, 2020 at 6:48 pm

    ! % Geoguard ultra  a blend of benzoic acid and gluconolactone

  • alchemist01

    Member
    May 7, 2020 at 7:11 pm

    Devansh7 said:
    Also any source to know what blend would be the best with absolute certainty? 

    I highly doubt anyone will tell you that, because no one has made your product.

  • Chemist77

    Member
    May 21, 2020 at 7:59 am

    Any idea where this product is going to be used, I mean area of use on the body.

  • Pharma

    Member
    May 21, 2020 at 10:17 am
    Preserved foods are typically labelled with an expiration date which, depending on packaging (hot fill in sealed jars, canned, or pasteurised), may well be longer than 1 year with that low pH (there’s a huge difference between pH 3 and 4!) and your preservative blend. And then the label reads: Store in fridge after opening and consume within a few days…
    What’s also required if you intend keeping it microbiologically clean for a long time during which consumers put their dirty fingers in it every day is a low water activity. 5% polyols won’t suffice.
    Read recommendations for food preservation.
  • Devansh7

    Member
    June 6, 2020 at 12:08 pm

    @Chemist77
    The area of use would be topic. On female genitalia. 
    Also, a blend of (glycerol + propylene glycol) (4g:1g   in 100ml) solution would be good enough as a humectant?  

  • Chemist77

    Member
    June 11, 2020 at 6:50 am

    In food what I generally see is a combination of KSorb/NaBenzoate along with other factors like low water activity, low pH (in ketch and sauses), high sugar content, etc. Again I believe the PET should be done no matter what the area of use is, more so in this case as it is an intimate care product. 

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