Lisa18

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Lisa18
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  • Natural preservation.
    Goodmorning everyone. I'm working with a preservative system (for me new) in biological formulations. I tested the mixture: benzyl alcohol, dehydroacetic acid and benzoic acid at 1% with challenge test and occlusive patch tests at 48 h and the products were non-irritating.does anyone have experience with this preservative system? have you had skin sensitization reactions in the finished product? Thanks in advance! lisa
    August 18