Researched by Helena DeMaria-Williams
Formula IngredientPreservativeBenzoic Acid
INCI: Benzoic Acid
Benzoic acid is a naturally occurring aromatic carboxylic acid used as an Ecocert-approved preservative in cosmetic formulations. It inhibits the growth of bacteria, yeasts, and moulds, particularly in acidic environments (pH < 5). It is typically used as part of a preservative blend rather than as a standalone preservative.
Category
Preservative
Irritation Risk
Low
Skin Types
all skin types
What does this do in a formula?
preservation, antimicrobial protection, product stability, Ecocert-approved
Is Benzoic Acid safe? Key considerations
Can Benzoic Acid cause irritation?
Low RiskConsidered gentle and non-irritating at permitted cosmetic concentrations. EU CosIng Annex V restricts benzoic acid to a maximum of 2.5% in rinse-off products and 1.7% in leave-on products (as acid). Higher concentrations may cause mild irritation.
Does Benzoic Acid increase sun sensitivity?
No RiskBenzoic acid does not increase photosensitivity.
Is Benzoic Acid safe during pregnancy?
SafeNo documented safety concerns for topical cosmetic use during pregnancy at regulated concentrations. Benzoic acid occurs naturally in many foods and is widely used in food preservation.
How does Benzoic Acid work?
Benzoic acid is a naturally occurring aromatic carboxylic acid used as an Ecocert-approved preservative in cosmetic formulations. It inhibits the growth of bacteria, yeasts, and moulds, particularly in acidic environments (pH < 5). It is typically used as part of a preservative blend rather than as a standalone preservative.
Individuals with known sensitivity to benzoic acid or benzoates should review the considerations above before use.
Which products contain Benzoic Acid?
Shop products that contain Benzoic Acid
