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Ingredient

Methylisothiazolinone

High concern

Linked to health concerns. We’d skip products that lean on this.

What it is

Methylisothiazolinone, a strong preservative.

Why it’s used

Tiny doses, strong effect — too strong for many skins.

What to know

A well-known contact allergen. High concern in leave-on, still a flag in rinse-off.

Who should skip

Eczema, fragrance-allergic people, children.

A gentler swap

MIT-free washes. They exist in every supermarket now.

You’ll see it in

Shampoo, wet wipes, body wash.

  • Extra care in pregnancy
  • Extra care for children

Found in

  • No catalog matches yet.
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