For newborns and babies under 6 months, this ingredient can irritate skin and eyes and may carry trace contaminants from manufacturing. Because very young babies have very sensitive skin, it’s safer to avoid products that contain Laureth-4 when possible.
Choose baby products made for newborns that list simple, gentle ingredients and avoid ones that include Laureth-4. Prefer wash-off products formulated for infants and fragrance-free options. If you do use a product that contains it, keep use minimal, avoid the face and eye area, rinse thoroughly after washing, and stop use if you notice any redness, rash, or eye irritation.
Warnings to watch for: skin redness, rash, stinging, eye watering, or breathing irritation after use — stop using the product and talk with your child’s pediatrician. The caution is based on a formal industry safety review that flags strong evidence of irritation and on documented contamination concerns (ethylene oxide and 1,4-dioxane) tied to manufacturing. Also note some product verification programs restrict its use unless manufacturers provide safety data; if a brand shows testing for low levels of these contaminants, that is safer.
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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 Laureth-4 or its alternative names.
Laureth-4 is not recommended for 0-6 month old babies due to potential safety risks.
Can cause skin redness, itchiness, or rashes—especially on sensitive baby skin. This is especially important for babies whose skin and systems are still developing.
Connected to cancer risk with long-term or repeated exposure. This is especially important for babies whose skin and systems are still developing.
Linked to long-term health effects after years of use or exposure. This is especially important for babies whose skin and systems are still developing.
Can be absorbed through the skin and get into the bloodstream. This is especially important for babies whose skin and systems are still developing.
Laureth-4 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 0-6 month old babies. Use the age selector above to check other ages.
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