Ingredient profile
At least one of our safety lists speaks to this ingredient. Also written as METHYL CHLORO ISOTHIAZOLINONE.
Raters don't agree. Here's where each one stands
Greenlens Ingredient Scan
Independent
Greenlens Tolerance Screen
Independent
Greenlens Precautionary Screen
Independent
Health Canada Ingredient Hotlist
Government
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Greenlens Ingredient Scan
Independent
No EU-regulated hazard recognized for this ingredient.
Greenlens Precautionary Screen
Independent
A preservative and potent contact sensitizer, usually paired with methylisothiazolinone. (ChemSec SIN List (Substitute It Now))
Greenlens Tolerance Screen
Also screened — not on these lists
Each jurisdiction is reported on its own terms, from its own official lists. Where they disagree, that disagreement is the finding. Absence from a list is never a safety claim.
Not on the lists we hold for this jurisdiction. That is an absence of a listing, not a safety finding.
Checked: EU Cosmetics Regulation Annexes II, III, V and VI; CLP Annex VI harmonised classification; ECHA SVHC Candidate List (cosmetics-relevant subset).
Allowed only under stated conditions or limits.
Not on the lists we hold for this jurisdiction. That is an absence of a listing, not a safety finding.
Independent
No prohibited or high-risk classification for this ingredient.
Health Canada Ingredient Hotlist
Government
A potent sensitizer permitted only in combination with MI, in rinse-off products at a strict cap. (Health Canada Cosmetic Ingredient Hotlist)
Checked: OEHHA Proposition 65 list.
Appears on an official list. A listing, not a use ban.