Antimicrobial
2,4-DIHYDROXYBENZOIC ACID
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A close cousin of salicylic acid (a dihydroxybenzoic acid, also called beta-resorcylic acid) used at low levels for mild antimicrobial and antioxidant effects. People allergic to aspirin should approach with caution.
Function
Skin benefits
- Mild antimicrobial activity
- Minor antioxidant effect
- Stable in aqueous formulations
- UV-absorbing chromophore at low contribution
Known concerns
- Salicylate analog; theoretical aspirin-allergy cross-reactivity
- Limited dedicated cosmetic safety review
- Avoid in children due to salicylate class
- Concentration discipline needed
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related antimicrobials
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.