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Home Cosmetic Science Talk Formulating Alternative for Phenoxyethanol

  • ozgirl

    Member
    May 22, 2020 at 3:25 am
    You will need to specify the type of product you are making and preferably provide a formulation or list of ingredients to get any useful suggestions.
  • gomorrian

    Member
    May 29, 2020 at 7:21 am

    It has low polarity, makes hard to be solubilized in water. You can add some solubilizer like polysorbate 20 if cloudiness is the only problem

  • letsalcido

    Member
    May 29, 2020 at 5:58 pm

    @mrlv90 like ozgirl mentioned you should share your formula!

    @gomorrian trapping a preservative in micelles doesn’t sound like a good idea. If phenoxyethanol is actually causing the cloudiness and it does get solubilized by PS20, then it will reduce the effectiveness of the preservative.

    Phenoxyethanol is miscible in water up to < 3%, and the maximum allowed usage in cosmetics is 1.1%. I am doubting it’s due solubility issues but rather an interaction with other ingredients.

  • Pharma

    Member
    May 29, 2020 at 7:02 pm

    It can be a solubility issue which is also common with other not super well water soluble preservatives such as propylparaben or sorbic acid: If added too fast, it will locally surpass solubility limit and flocculate. Due to poor/slow solubility, this small precipitates don’t readily re-dissolve. They also tend to attract more preservative and grow in size to form clearly visible lumps which become nearly impossible to dissolve (especially if oils are present in the formulation).

  • josua

    Member
    March 3, 2022 at 8:06 am

    try geogard ect, its good preservative

  • Paprik

    Member
    March 3, 2022 at 9:06 pm

    Also, Phenoxyethanol as a solo preservative is not enough. 

    Use Liquid Germall plus, 0.5%, goes straight into water and had never issues. 

  • sean9980

    Member
    March 13, 2022 at 3:44 am

    Paprik said:

    Also, Phenoxyethanol as a solo preservative is not enough. 

    Use Liquid Germall plus, 0.5%, goes straight into water and had never issues. 

    You could use euxyl pe 9010

  • Paprik

    Member
    March 13, 2022 at 10:10 pm

    sean9980 said:

    Paprik said:

    Also, Phenoxyethanol as a solo preservative is not enough. 

    Use Liquid Germall plus, 0.5%, goes straight into water and had never issues. 

    You could use euxyl pe 9010

    Euxyl PE9010 is 90% Phenoxyethanol, therefore using this won’t solve the original issue. 

  • sean9980

    Member
    March 13, 2022 at 10:46 pm

    Paprik said:

    sean9980 said:

    Paprik said:

    Also, Phenoxyethanol as a solo preservative is not enough. 

    Use Liquid Germall plus, 0.5%, goes straight into water and had never issues. 

    You could use euxyl pe 9010

    Euxyl PE9010 is 90% Phenoxyethanol, therefore using this won’t solve the original issue. 

    Sorry I didn’t read the original post when I was doing the search