Dmdm Hydantoin

adultsSkin contact product

Check for Different Age (6 available)

Is this safe for adults to use Dmdm Hydantoin?

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USE WITH CAUTION
Danger Score: 5 (Lower is safer)
Quick Answer: Dmdm Hydantoin use with caution for adults when used in topical products. Adults generally have higher tolerance.

ℹ️General Overview

For adults: this ingredient is a preservative that can release tiny amounts of formaldehyde. Most adults tolerate it, but it commonly causes skin irritation or allergic reactions in sensitive people. Some countries limit its use.

What to Do

If you’re an adult using a product with this ingredient: do a small patch test on your inner forearm before using widely; avoid using it on broken, red, or inflamed skin; stop use if you get itching, redness, swelling, or a rash; choose products labeled for sensitive skin or preservative-free if you’ve had reactions to preservatives before.

⚠️Warnings

Watch for allergic skin reactions and irritation — industry safety reviews report it as a skin sensitizer. There are contamination concerns with formaldehyde and some countries limit or prohibit its use in certain products (reported by regulatory reviews and the Japan health authority). There is limited evidence about cancer risk in older evaluations. If you have a known preservative allergy, choose products without this ingredient (sources: industry safety review, Japan health regulators, chemical hazard evaluations).

Confidence: HIGH

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Safety Risk Labels

This ingredient has the following documented risks:

Immune system: Safety reviewers report strong evidence that DMDM Hydantoin can cause skin allergy and immune reactions in people. This is called out by the Cosmetic Ingredient Review and supported by national chemical agency findings and peer‑reviewed reports.
Irritant: There is clear human evidence that this ingredient can irritate skin, eyes, or lungs. That conclusion is reported by the Cosmetic Ingredient Review based on case and study data.
Cancer: High contamination concern: DMDM Hydantoin can contain or release formaldehyde, and formaldehyde is linked to cancer by international cancer evaluators. Because of this contamination risk, cancer is a real concern even though direct cancer evidence for the ingredient itself is limited.
Banned: Some governments limit or prohibit this ingredient in certain cosmetic types and set concentration limits; the Japan Ministry of Health has specific restrictions and prohibitions for some products.
Absorbed: Review notes indicate enhanced skin absorption for this ingredient, meaning it can pass through the skin and increase internal exposure—this finding is reported by industry and safety reviewers.
Eczema: Because it is a known skin allergen and irritant, DMDM Hydantoin can trigger or make eczema and similar skin conditions worse in sensitive children, as noted by safety reviews and chemical agency reports.

Tap or hover over labels to see detailed risk information.

Alternative Names for Dmdm Hydantoin

This ingredient may also be listed as:

dmdm hydantoinAS-10924ST50950036SY101650Q52056131,3-BIS (HYDROXYMETHYL)-5,5-DIMETHYLIMIDAZOLIDINE-2,4-DIONEFT-06066991,3-DIMETHYLOL-5,5-DIMETHYL-HYDANTOINSC-15332W-104844CAS-6440-58-0

Always check ingredient labels carefully, as ingredients may be listed under different names.

Products Containing Dmdm Hydantoin

This ingredient is found in the following products:

This list shows products that contain Dmdm Hydantoin or its alternative names.

Common Questions About Dmdm Hydantoin

Is this safe for adults to use Dmdm Hydantoin?

Use caution with Dmdm Hydantoin for adults. Some safety concerns have been identified.

What are the immune system risks of Dmdm Hydantoin for adults?

Could weaken or confuse immune system.

What are the irritant risks of Dmdm Hydantoin for adults?

Can cause skin redness, itchiness, or rashes—especially on sensitive baby skin.

What are the cancer risks of Dmdm Hydantoin for adults?

Connected to cancer risk with long-term or repeated exposure.

What are the banned risks of Dmdm Hydantoin for adults?

Banned or heavily restricted in one or more countries.

What are the absorbed risks of Dmdm Hydantoin for adults?

Can be absorbed through the skin and get into the bloodstream.

What are the eczema risks of Dmdm Hydantoin for adults?

Linked to triggering or worsening eczema and similar skin conditions.

What products contain Dmdm Hydantoin?

Dmdm Hydantoin is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.

When can adults using products with Dmdm Hydantoin?

The appropriate age depends on the specific ingredient properties and concentration. This analysis is for adults. Use the age selector above to check other ages.

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