Methylisothiazolinone
Methylisothiazolinone is a cosmetic ingredient used as a preservative agent. It is used in 431 products in our dataset. It carries no restriction under the EU Cosmetics Regulation annexes. PubMed carries 465 studies of its skin or topical use.
| INCI name | METHYLISOTHIAZOLINONE |
| Function | PRESERVATIVE |
| CAS number | 2682-20-4 |
| EC number | 220-239-6 |
| Prevalence | 431 products (0.46% of dataset) |
| Most used in | Haircare |
| EU status | No annex restriction |
| Scientific studies | 465 on PubMed (skin/cosmetic/topical) |
| Monthly searches | 9,900 |
Used in
Conditioners 20.9%Face Cleansers 18.1%Shampoos 16%Body Washes 9%Hair Masks 4.6%Serums 3.7%
Frequently asked
- What does Methylisothiazolinone do in skincare?
- Methylisothiazolinone functions as a preservative agent in cosmetic formulas.
- What products contain Methylisothiazolinone?
- It is most commonly found in Haircare products, especially conditioners (20.9% of its uses).
Manufacturers with experience using Methylisothiazolinone
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.