Methylchloroisothiazolinone
Methylchloroisothiazolinone
Also known as: methylchloroisothiazolinone
MET
6/10
Concern level
Moderate concern
Methylchloroisothiazolinone is a synthetic preservative used to prevent microbial growth in cosmetic products. It is effective at low concentrations but can be irritating to the skin.
Benefits
Antiseptic
Chemical Properties
Molecular Weight
202.56 g/mol pH Range
4.00 - 8.00Typical Concentration
0.00% - 0.01%CAS Number: 26172-55-4
Skin Type Compatibility
dry skin3/10
oily skin4/10
sensitive skin1/10
acne prone2/10
mature skin3/10
normal skin4/10
Risks & Warnings
Known to cause allergic reactions and skin sensitization, particularly in leave-on products.
Vegan Cruelty-Free
