5+ year old children • Skin contact product
For children aged 5 and older (school-age kids), this ingredient is low risk when used in normal amounts on the skin. Most safety checks show low concern for cancer, allergies, and effects on growth or reproduction. The main issue found was skin irritation in some animal tests at high doses.
Use products that list this ingredient as directed. Before full use on a child’s skin, try a small patch test on the inside of the forearm and wait 24 hours to check for redness or irritation. Avoid using products with it on broken or very irritated skin. If your child has sensitive skin, start with a small amount or choose a product without it.
Watch for redness, itching, stinging, swelling, or eye irritation after use — these are signs of irritation (source: Cosmetic Ingredient Review animal data). Also note that some product verification programs restrict this ingredient unless manufacturers provide extra safety data, so if you prefer verified formulations you may find alternatives. If breathing problems, hives, or severe reaction occur, stop use and seek medical care.
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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 Polymethylsilsesquioxane or its alternative names.
Yes, Polymethylsilsesquioxane is generally considered safe for 5+ year old children based on current research.
No immediate health concerns found based on current research.
Polymethylsilsesquioxane 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 5+ year old children. Use the age selector above to check other ages.
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