Sodium Benzoate is a widely used preservative in cosmetics, food, and pharmaceuticals. It works by inhibiting the growth of mold, yeast, and some bacteria, thereby extending the shelf-life of products. It is most effective in acidic formulations.
NonePreservativeVeganEvidence: High
BenefitNone 0 / 4
RiskLow 1 / 4
Irritation
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
potential for mild irritation
can form benzene with ascorbic acid
Be careful combining with
Vitamin C— Sodium benzoate can react with ascorbic acid (Vitamin C) in certain conditions to form benzene, a known carcinogen. While this reaction is rare in cosmetic formulations, it's a consideration.
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Products with Sodium Benzoate
Shape Tape™ Creamy Concealer
Score 4.3 / 5
Original Root Stimulator Olive Oil Moisturizing Hair Lotion
Sodium Benzoate is generally considered safe for use in cosmetics at approved concentrations. Regulatory bodies worldwide have reviewed its safety, and it is widely permitted as a preservative.
Can Sodium Benzoate react with other ingredients?
Under specific conditions, Sodium Benzoate can react with ascorbic acid (Vitamin C) to form benzene. Formulators typically avoid this combination or ensure conditions prevent this reaction.
Spotty Labs