DMDM Hydantoin is a formaldehyde-releasing preservative used in many cosmetic and personal care products. It works by slowly releasing small amounts of formaldehyde, which prevents the growth of microbes like bacteria, yeast, and mold. This helps to extend the shelf life of products and protect them from contamination.
NonePreservativeVeganEvidence: High
BenefitNone 0 / 4
RiskHigh 2.5 / 4
Sensitization
Irritation
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
Potential for skin irritation and sensitization
Formaldehyde release can be an allergen
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Products with DMDM Hydantoin
Original Root Stimulator Olive Oil Moisturizing Hair Lotion
DMDM Hydantoin is used as a preservative to prevent microbial growth in cosmetic products, ensuring their safety and extending their shelf life. It is effective against a broad spectrum of bacteria, yeasts, and molds.
Is DMDM Hydantoin safe?
While approved for use in cosmetics at certain concentrations, DMDM Hydantoin is a known formaldehyde-releaser and can cause allergic reactions or skin irritation in some individuals, particularly those sensitive to formaldehyde.
Spotty Labs