QUATERNIUM-15
Caution
CAS Number: 4080-31-3 / 51229-78-8
About QUATERNIUM-15
A formaldehyde-releasing quaternary ammonium preservative with known skin sensitization risk, restricted under EU Annex II/1386 and subject to specific labeling requirements.
Detailed Analysis
Quaternium-15 is a widely documented formaldehyde releaser used as a preservative in cosmetic formulations. It is listed in EU Annex II/1386 as a restricted preservative specifically due to its formaldehyde-releasing mechanism and the associated risk of allergic contact dermatitis. Its use is permitted but strictly controlled, and it must be declared on the ingredient list. Formaldehyde-releasing preservatives have been declining in use due to consumer sensitivity and regulatory pressure in the EU.
Skin Benefits
- ✓ Effective broad-spectrum preservative in water-based cosmetics
Known Concerns
- ⚠ Formaldehyde releaser — risk of allergic contact dermatitis
- ⚠ Skin sensitizer (known allergen)
- ⚠ Restricted under EU Annex II/1386
- ⚠ Subject to specific labeling requirements in EU
Safety Score
Caution
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.