Skip to content

Preservative

HEXAMIDINE

CAS 3811-75-4
65

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A cationic antimicrobial used at low concentrations to keep formulas microbially stable. Effective and EU-regulated, but it can sensitize a fraction of users.

Function

PRESERVATIVE

Skin benefits

  • Antimicrobial preservative
  • Effective against gram-positive bacteria and yeasts
  • Used in dermatological formulations
  • Skin-soothing claims at low %

Known concerns

  • Possible contact sensitization in some users
  • Cationic antimicrobial — irritant potential
  • Restricted use levels in EU cosmetics
  • Limited rinse-off vs leave-on data

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related preservatives

65
4-HYDROXYBENZOIC ACID
Preservative
 65
HEXAMIDINE DIISETHIONATE
Preservative
 65
Hexa-2,4-dienoic acid and its salts
Preservative
 65
O-CYMEN-5-OL
Preservative
 65
Propionic acid and its salts
Preservative
 64
PHENETHYL PHENOXY METHYLDIHYDROPYRROLOQUINOLINE HCL
Preservative
 62
1,2-HEPTANEDIOL
Preservative
 62
CALCIUM SALICYLATE
Preservative

Check your shelf

Find HEXAMIDINE in your products.

Scan any cosmetic product with LuxSense to see if it contains HEXAMIDINE and get a full ingredient breakdown with safety scores.

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.