Preservative
Quaternium-15
An older preservative formaldehyde-releaser with a notable allergenic potential. Quaternium-15 can effectively preserve the formula, but it is often considered an undesirable choice for sensitive skin.
preservativeformaldehyde releaserallergen risklegacy
✕ High Risk
Comedogenic Rating
0/5
Irritation Potential
3/5
What is it?
Quaternium-15 is a quaternary ammonium compound and preservative that can release formaldehyde. Today, it is used much more cautiously due to contact allergy.
Historically used in creams, lotions, shampoos, decorative cosmetics, and other aqueous formulas.
Key Benefits
Has antimicrobial action
Protects the product from unwanted microbial growth.
Works as a preservative
May be part of a preservative system in older or specialized formulas.
Well noticeable in INCI
It is easy to identify for people who avoid formaldehyde releasers.
Suitable for
Main Actions
A frequent candidate for avoidance in sensitivity
Quaternium-15 should be particularly carefully checked by people with dermatitis, formaldehyde allergy, or reactions to preservatives. It is not an active for the skin, but a technical preservative.
CategoryPreservatives
Frequently Asked Questions
What does Quaternium-15 do for skin?
Historically used in creams, lotions, shampoos, decorative cosmetics, and other aqueous formulas.
Who should use Quaternium-15?
Quaternium-15 is suitable for: specialized formulas, older products, rinse-off products.
Are there any warnings about Quaternium-15?
Quaternium-15 should be particularly carefully checked by people with dermatitis, formaldehyde allergy, or reactions to preservatives. It is not an active for the skin, but a technical preservative.
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