Sodium benzoate, or Benzoate de Sodium, is derived from benzoic acid, which is naturally present in milk fermentation or in fruits (such as blueberries and cranberries). It is used as a preservative. The law requires the protection of skincare products from any external microbial contamination, hence the importance of adding preservatives. The question that arises is: what is the utility of sodium benzoate? Let's focus.