Lip safe preservative

Please, can someone recommend a lip safe preservative for lip balm. Initially I was only using Vit E ( which isn’t really a preservative) but having recently learnt about contamination even in an anhydrous formulations, I would like to make sure the product is safe. 
Recommendations will be highly appreciated 

Comments

  • SibechSibech Member, Professional Chemist
    Contamination in an anhydrous formula is unlikely, bacteria and mold won’t grow without water. 

    Phenoxyethanol could be used if you want a suggestion anyway.
    Dabbling Formulator — Qualified Cosmetic Safety Assessor — experienced in claim substantiation & EU regulatory affairs.
  • Ι think that you can contaminate your  lipbalm by your saliva,so your product would be safer if you use a preservative system.
    You can use propylparaben or a blend of 9:1 phenoxyethanol/ethylhexylglycerin
  • DoreenDoreen Member
    @Sibech
    Microbial growth on the surface isn't uncommon, same for other anhydrous products that come in contact with water. Better be safe than sorry. I agree with @marytsiang .
    I myself use 0.1% propyl paraben in lipbalms. And lipsticks, but I hardly make those.
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