Methylparaben
INCI: METHYLPARABEN
Also known as: Methyl 4-Hydroxybenzoate
Key Facts
- CAS Number
- 99-76-3
- Category
- preservative
- Risk Level
- low
- Common Allergen
- Yes
- Max Concentration
- 0.4% (single), 0.8% (mix)
- Found In
- moisturizer, shampoo, makeup
Is Methylparaben safe in cosmetics?
Methylparaben is rated low risk in cosmetic products. It is a known allergen that can cause contact dermatitis in sensitized individuals. Relatively low sensitization rate (~1-3%) but very widely used. Safer alternatives include Phenoxyethanol, Sodium Benzoate, Potassium Sorbate. Commonly found in moisturizer, shampoo, makeup.
What is Methylparaben?
Most common paraben. Despite controversy, considered safe at approved levels by major regulatory bodies.
Allergy & Safety Information
Methylparaben is considered safe for cosmetic use. No significant safety concerns have been identified at typical use concentrations. As with any cosmetic ingredient, discontinue use if irritation occurs.
Cross-Reactions
If you react to Methylparaben, you may also react to:
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Methylparaben safe for sensitive skin?
Methylparaben is generally well-tolerated, even by sensitive skin types.
What products contain Methylparaben?
Methylparaben is commonly found in moisturizer, shampoo, makeup.
What does Methylparaben do in cosmetics?
Methylparaben functions as a preservative in formulations.
Related Guides
Top 10 Cosmetic Allergens
Is Methylparaben 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 Methylparaben 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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