IngredientsEuropean Union

Methylisothiazolinone (MIT) in EU cosmetics: status and maximum concentration

INCI METHYLISOTHIAZOLINONE · CAS 2682-20-4

EU status: Allowedrinse-off only, max 0.0015 %

Data from Certo’s regulatory database as of

The short answer

Methylisothiazolinone (MIT) is allowed in cosmetic products sold in the European Union (rinse-off only, max 0.0015 %). The binding limits are set in Regulation (EC) No 1223/2009, Annex V, entry 57.

EU legal requirements

What the EU Cosmetics Regulation and REACH require for Methylisothiazolinone (MIT), entry by entry.
Product type or useLimitConditions and label wordingApplies from
EU Cosmetics Regulation, Annex V 57 Legal text
Rinse-off products≤ 0.0015 %—In force
Any other productNot allowed—In force
Alongside the MCI/MI mixture (Annex V 39)Not allowed—In force
57 2-Methyl-2H-isothiazol-3-one Methylisothiazolinone ( 18 ) 2682-20-4 220-239-6 Rinse-off products 0,0015 % ►M22 ( 18 ) Methylisothiazolinone is also regulated in entry 39 of Annex V in a mixture with methylchloroisothiazolinone. The two entries are mutually exclusive: the use of the mixture of Methylchloroisothiazolinone (and) Methylisothiazolinone is incompatible with the use of Methylisothiazolinone alone in the same product. ◄
Reg. (EC) No 1223/2009, Annex V, entry 57 (as amended by Reg. (EU) 2017/1224)

Not to be confused with

  • Methylchloroisothiazolinone (and) Methylisothiazolinone (CAS 26172-55-4, 55965-84-9): The 3:1 mixture of Annex V 39: its 0,0015 % is for the mixture, not this substance alone.
  • 2-Methyl-2H-isothiazol-3-one hydrochloride (CAS 26172-54-3): The hydrochloride salt: another substance, with its own CLP entry.

Sources

  1. Reg. (EC) No 1223/2009, Annex V, entry 57 (as amended by Reg. (EU) 2017/1224)

This page is general regulatory information, not legal advice. Rely on the legal texts linked above and on your own regulatory experts before making a compliance decision.