Know Your Ingredients: Benzethonium Chloride


What it is
Benzethonium Chloride is a white or colorless crystal.

What it does
Benzethonium Chloride is a preservative: it kills bacteria and prevents them from growing in cosmetics and personal care products, thus prolonging their shelf-life.
It is considered less irritating than most other preservatives.

Side effects
Benzethonium Chloride is safe when used in concentrations up to 0.05% on products applied on the skin, and in concentrations up to 0.02% on products applied on the eye area.

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  1. lucinda giese says

    why do the drug company put polyethylene glycol in just about every thing the reason that I need to know is because I am allergic to it . polyethylene glycol makes me itch and break out in rash . Isn’t there any drugs out there that they don’t put that in I just found out that the drug company put that in my pain medicine why?

    • beautifulwithbrains says

      Lucinda, I’m sorry to hear that, how awful! In cosmetics this ingredient is used as a scrub and to help other ingredients penetrate better into the skin. But I’m not sure why it’s used in drugs, sorry.

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