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DMDM Hydantoin is used as a preservative in cosmetics and acts against fungi, yeasts and bacteria. It is a liberator of formaldehyde (formol). It is used in shampoos, skin care products, hair products, makeup, conditioners and make-up removers. It is also found in many other consumer products such as herbicides, latex paints, polishes, stripping oils, adhesives, photocopy paper or inks.
A formaldehyde liberator is a compound that slowly releases formaldehyde (formol), a molecule considered to be CMR.