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Ingredient

DMDM hydantoin

High concern

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

What it is

DMDM hydantoin, a preservative that slowly releases formaldehyde.

Why it’s used

Keeps shampoo from going off.

What to know

High concern, especially on scalps and children’s baths.

Who should skip

Sensitive skin, children, anyone avoiding formaldehyde-releasers.

A gentler swap

A gentler preserved or freshly made wash.

You’ll see it in

Shampoo, cheap lotion.

  • Extra care in pregnancy
  • Extra care for children

Found in

  • No catalog matches yet.
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