Kathon, commonly used as an alternative to substances such asparabensandformaldehyde, is apreservativecompound. Technically, the formulation known asKathon CG(orKathon 886) consists of compounds such asphenoxyethanol,methylchloroisothiazolinone(MCI) andmethylisothiazolinone(MIT). These compounds prevent product spoilage by inhibiting the growth ofmicroorganisms(bacteria and fungi).
Kathon is widely used incosmetic productsandcleaning products, particularly inwater-containing formulations.
Properties of Kathon:
- Antimicrobial Effect: Kathon is effective against bacteria and fungi, thus inhibiting the growth of microorganisms in cosmetic and cleaning products, ensuring the products remain stable for longer.
- Preservative Property: Kathon plays a key role in preserving water-based products. Since water-containing formulations provide an environment where bacteria can multiply rapidly, preservatives are used to prevent this effect.
- Chemical Composition: Kathon is known for its two main components:methylchloroisothiazolinone(MCI) andmethylisothiazolinone(MIT). These are members of theisothiazolinonefamily and possess antimicrobial properties.
Applications of Kathon:
- Cosmetics and Personal Care Products:
- Shampoos: Used in hair care products to inhibit microbial growth and extend product shelf life.
- Facial Cleansers and Creams: Used as a preservative in skincare products, especially in water-containing formulations.
- Makeup Products: Used in makeup products, particularly liquid formulations, to prevent microbial contamination.
- Household Cleaning Products:
- Detergents and Laundry Bleaches: Used in household cleaning products to inhibit microbial growth and enhance product stability.
- Surface Cleaners: Used in kitchen and bathroom cleaners to prevent bacterial contamination of the products.
- Industrial Products:
- Cooling fluidsandlubricants, among other industrial products, can be used to prevent microbial degradation.

