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Preservative

POLYAMINOPROPYL BIGUANIDE STEARATE

Updated
42

Safety score · 0–100

Moderate

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

About

A stearate variant of PHMB, used as a preservative. Effective but EU-restricted: limited concentration in rinse-off and not allowed in sprays due to inhalation concern.

Function

DEODORANTFRAGRANCE

Skin benefits

  • Effective antimicrobial preservation
  • Lipophilic anchor for leave-on use
  • Broad-spectrum activity at low levels

Known concerns

  • PHMB is restricted in EU cosmetics under Annex III with concentration limits
  • Avoid in spray products due to inhalation concerns
  • Sensitization potential reported

References

EU

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.