You should know
What it is
Concerns
Explained
MCI is a preservative and known skin-irritant. It has anti-bacteria anti-fungal properties.
Studies spanning several decades have shown this ingredient to cause skin irritation and allergies.
MCI is commonly combined with methylisothiazolinone (MI). Other names for this mixture include Kathon CG and Euxyl K 100.
The use of this ingredient varies around the world:
- The EU allows this ingredient in rinse-off products up to 15 parts per million (ppm).
- The US allows this ingredient in concentrations of up to 15 ppm in both rinse-off and 7.5 ppm leave-on products.
- Canada allows this ingredient to be used with MI in rinse-off products. The combination must not exceed 0.0015%.
People also dislike: Methylisothiazolinone, Parfum, Niacinamide
Methylchloroisothiazolinone is a rare cosmetic ingredient, with about 0.9% of the products in our database containing it.
What it does:
Community Stats
103 people from our community have liked or disliked this ingredient.
Users who dislike it 💔
Often have the following skin types:
Usually have one or more of the following skin concerns:
Where it's used
Methylchloroisothiazolinone is most often found as ingredient number 21 within an ingredient list.
These are the categories of products that use Methylchloroisothiazolinone the most:
References
Products with Methylchloroisothiazolinone
CosIng Data
- CosIng ID: 35333
- INCI Name: METHYLCHLOROISOTHIAZOLINONE
- EC #: Â 247-500-7
- All Functions: Preservative