Preservative
CHLORHEXIDINE DIHYDROCHLORIDE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Chlorhexidine dihydrochloride, a strong antiseptic and preservative also used in mouthwashes. Effective but a known sensitizer with rare cases of severe allergic reaction.
Function
Skin benefits
- Effective antimicrobial preservative
- Useful against gram-positive bacteria
- Long medical-use track record
Known concerns
- Documented contact allergen and sensitizer
- Rare but serious anaphylactic reactions reported
- EU concentration limits apply
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
PubChem
U.S. NIH compound data, GHS hazard codes and toxicity literature.
Related preservatives
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.