MCI/MI

1% line markerAI-analyzed

INCI: METHYLCHLOROISOTHIAZOLINONE (AND) METHYLISOTHIAZOLINONE

preservative

What it does

Methylchloroisothiazolinone (and) Methylisothiazolinone is a highly effective broad-spectrum preservative blend commonly used in rinse-off cosmetic products to prevent microbial growth.

Skin Concerns

No specific concern data available

Safety & Science

Safety summary

While highly effective, this blend is a known sensitizer and allergen, especially in leave-on products, and its use is restricted in many regions.

1% line marker

This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.

Found In Products

Related Ingredients

For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.