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This is a preservative used to prevent the growth of bacteria, yeast, and mold in cosmetic products. It helps ensure the product remains safe and effective throughout its shelf life.
No specific concern data available
Safety summary
Methylisothiazolinone is a known contact allergen and can cause skin sensitization and allergic reactions, especially in rinse-off products. It is often restricted in concentration or usage due to these concerns.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.