Formaldehyde
INCI: FORMALDEHYDE
Also known as: Formalin, Methanal
Key Facts
- CAS Number
- 50-00-0
- Category
- preservative
- Risk Level
- high
- Common Allergen
- Yes
- EU Status
- Restricted
- Max Concentration
- 0.1% (free formaldehyde)
- Found In
- nail polish, hair straightening
What is Formaldehyde?
Known carcinogen and potent allergen. Rarely used directly but released by formaldehyde-releasing preservatives.
Allergy & Safety Information
Formaldehyde is classified as a high-risk ingredient. It is a known cause of allergic contact dermatitis. It is restricted or regulated in the EU. 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 Formaldehyde.
Cross-Reactions
If you react to Formaldehyde, you may also react to:
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Formaldehyde safe for sensitive skin?
Formaldehyde is a known allergen and is generally not recommended for sensitive skin. Consider patch testing before use.
What products contain Formaldehyde?
Formaldehyde is commonly found in nail polish, hair straightening.
What does Formaldehyde do in cosmetics?
Formaldehyde functions as a preservative in formulations. Strong sensitizer and classified carcinogen (IARC Group 1).
Is Formaldehyde 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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