Edible Chelators and Preservatives

I am currently working on some edible adult novelty products and am looking for chelators and preservatives that are safe to ingest. 

For preservatives, I was thinking of Potassium Sorbate paired with sodium benzoate. Or Caprylyl Glycol, Propanediol, Glyceryl Caprylate (Not sure if this is edible)

I am going to add vitamin E as an antioxidant as well. 

Would you recommend any other preservatives? They should be compatible with emulsion systems, solubility in oil or water, either pH independent or functional between 4-7

Are there any blends in the market that you think would work well?

I really appreciate your help!

Thank you


  • PharmaPharma Member, Pharmacist
    Preservatives: Benzoate, sorbate, and glycerin (propylene glycol may be possible) or sugar alcohols. The other glycols are not edible as far as I know (they're at least not properly tested). Glyceryl monoesters are used as food processing aids, though I'm not sure if glyceryl caprylate is amongst them...
    Chelates: Citrate and phytate.
  • MarkBroussardMarkBroussard Member, Professional Chemist
    Your best bet would be to stick to food grade Sodium Benzoate, Potassium Sorbate, Citric Acid, L-Ascorbic Acid
    Chemist/Microbiologist formulating in the Organic & Naturals & Clean Beauty arena under ECOCert/Natural Products Assn/Whole Foods/National Organic Program/Clean At Sephora/Credo Clean guidelines focused skincare & haircare products. 

    See website for details www.desertinbloomcosmeticslab.com
  • Thank you @Pharma and @MarkBroussard

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