Zinc 4-hydroxybenzene sulphonate
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Zinc 4-hydroxybenzene sulphonate is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
Zinc 4-hydroxybenzene sulfonate (zinc p-hydroxybenzenesulfonate) is a zinc salt of hydroxybenzenesulfonic acid used for its antimicrobial and astringent properties, particularly in acne treatment products. It is permitted in cosmetic products at a maximum concentration of 6% as anhydrous substance according to EU cosmetic regulations. The GHS hazard statements (H302, H315, H319, H335) indicate it requires careful formulation to avoid irritation. It is not classified as a fragrance allergen.
Skin benefits
- Antimicrobial properties useful in acne treatments
- Astringent effect on skin
- Zinc provides sebum-regulating benefits
- Used in anti-acne formulations
Known concerns
- H302 harmful if swallowed
- H315 skin irritation
- H319 serious eye irritation
- H335 respiratory irritation
- Formulation required to prevent inhalation exposure
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.