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Cosmetic Science Talk

Cosmetic Science discussion forum. For people who want for formulate cosmetics and get advice from other formulators around the world.
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Home › Cosmetic Science Talk › Formulating › not sure how much preservative to add

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  • OldPerry

    Professional Chemist / Formulator
    February 15, 2020 at 12:24 am

    You need to put enough in the formula for it to pass a preservative efficacy test.

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0 of 0 replies June 2018
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