Sodium Benzoate

Sodium Benzoate

7.5

Ingredient Info

Sodium benzoate is a preservative used in skincare products to prevent bacterial and fungal growth, extending shelf life. It's a salt derived from benzoic acid and is one of the most widely used preservatives in cosmetics, skincare, and food products.



Benefits

  • Prevents microbial contamination and extends product shelf life
  • Generally effective at low concentrations (0.1-0.5%)
  • Approved for cosmetic use by major regulatory bodies

Potential concerns

  • Can cause allergic contact dermatitis in sensitive individuals; identified as an allergen in medical hand cleansers
  • Recent research suggests long-term oral intake may affect bone health and increase osteoporosis risk, though topical skincare exposure is minimal

Science: Sodium benzoate is well-established as a safe preservative in cosmetics at typical use levels. However, emerging research indicates that chronic systemic intake may interfere with bone metabolism through the FGF2/p38/RUNX2 pathway. For topical skincare use, the exposure and absorption are minimal compared to dietary intake, but individuals with known sensitivities should avoid it.



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