For adults: Trideceth-12 is generally low risk when used on the skin. Most people tolerate it fine, but the main worry is possible contamination from manufacturing byproducts.
Use products from reputable brands that test or state they control for impurities like 1,4‑dioxane. Do a small patch test on the inside of your arm before widespread use. Avoid applying to open wounds or irritated skin. If you use spray products, avoid inhaling the mist.
Pay attention to product labels and brand safety statements because reviews from regulatory and safety bodies (for example, Environment Canada and the Cosmetic Ingredient Review) note possible contamination (ethylene oxide and 1,4‑dioxane) and some concern for organ-system toxicity and irritation. If you have a weakened immune system, liver or lung problems, or notice redness, stinging, or other reactions, stop use and see a healthcare provider. Also note some certification programs restrict this ingredient unless manufacturers show extra safety testing.
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This ingredient has the following documented risks:
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This ingredient may also be listed as:
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This ingredient is found in the following products:
This list shows products that contain Trideceth-12 or its alternative names.
Yes, Trideceth-12 is generally considered safe for adults based on current research.
Connected to cancer risk with long-term or repeated exposure.
May harm organs like liver, kidneys, or lungs with repeated use.
Can cause skin redness, itchiness, or rashes—especially on sensitive baby skin.
Possible negative effects on the environment
Linked to long-term health effects after years of use or exposure.
Trideceth-12 is commonly found in skincare products, cosmetics, and topical applications. Always check ingredient labels before use.
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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