Synthetic preservatives
Preservatives for cosmetics - General information and antimicrobial preservatives

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J2284 V1 Article

Synthetic preservatives
Preservatives for cosmetics - General information and antimicrobial preservatives

Authors : Xavier FERNANDEZ, Florence MERCK, Audrey KERDUDO

Review date: January 30, 2025 | Lire en français

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3. Synthetic preservatives

3.1 Sorbic acid, formalin and other synthetic preservatives

Authorized preservatives are all of synthetic origin. Their modes of action, activities and physico-chemical properties vary widely.

Organic acids are one of the most widely used classes of preservatives. They have a dual antimicrobial effect. Firstly, through acidification of the medium (§ 2.3

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