Quaternium-15
INCI: QUATERNIUM-15
Also known as: Dowicil 200
Key Facts
- CAS Number
- 4080-31-3
- Category
- preservative
- Risk Level
- high
- Common Allergen
- Yes
- Max Concentration
- 0.2%
- Found In
- moisturizer, foundation, lotion
Is Quaternium-15 safe in cosmetics?
Quaternium-15 is rated high risk in cosmetic products. It is a known allergen that can cause contact dermatitis in sensitized individuals. Releases the highest amount of formaldehyde among formaldehyde-releasing preservatives. Safer alternatives include Phenoxyethanol, Sodium Benzoate, Potassium Sorbate. Commonly found in moisturizer, foundation, lotion.
What is Quaternium-15?
Formaldehyde-releasing preservative. Releases the most formaldehyde of all FRP.
Allergy & Safety Information
Quaternium-15 is classified as a high-risk ingredient. It is a known cause of allergic contact dermatitis. Individuals with sensitive skin or a history of contact allergies should avoid products containing this ingredient. A patch test is recommended before first use of any product containing Quaternium-15.
Cross-Reactions
If you react to Quaternium-15, you may also react to:
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Quaternium-15 safe for sensitive skin?
Quaternium-15 is a known allergen and is generally not recommended for sensitive skin. Consider patch testing before use.
What products contain Quaternium-15?
Quaternium-15 is commonly found in moisturizer, foundation, lotion.
What does Quaternium-15 do in cosmetics?
Quaternium-15 functions as a preservative in formulations. Releases the highest amount of formaldehyde among formaldehyde-releasing preservatives.
Related Guides
Top 10 Cosmetic Allergens
Is Quaternium-15 on the list? See the full clinical ranking.
Preservative Allergy Guide
Which preservatives cause the most reactions and what to use instead.
How to Read Ingredient Labels
Decode INCI names and find hidden allergens in your products.
Find Your Skin Allergy Trigger
Step-by-step elimination method to identify your trigger.
Contact Dermatitis Guide
Symptoms, causes, patch testing, and treatment options.
Is Quaternium-15 causing YOUR skin reactions?
SkinDetekt tracks your products and reactions to find your personal triggers. Download the app to find out.
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