For newborns and babies (0–6 months), caprylyl methicone is usually low risk on its own, but there are concerns about possible contamination with other silicone chemicals and some animal studies that found problems at higher doses. Because baby skin is thin, we recommend extra caution.
If possible, pick newborn-friendly products that do not list this ingredient or that state they avoid cyclic siloxane contaminants. If you use a product with caprylyl methicone: apply a very small amount to intact skin only, avoid the face and eyes, do a small patch test first on the forearm, and stop use immediately if you see redness, swelling, or irritation. For sunscreen and daily care, prefer products made specifically for infants.
Watch for skin redness, rash, swelling, or any breathing or eye irritation and stop use if these happen. The concern about contamination with cyclopentasiloxane and cyclotetrasiloxane comes from ingredient safety reviews (noted by the Cosmetic Ingredient Review) and environmental/chemical agency findings (including the U.S. EPA). Some product verification programs restrict this ingredient unless manufacturers show extra safety testing—that is why choosing products labeled safe for newborns can reduce risk.
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This ingredient has the following documented risks:
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This ingredient is found in the following products:
This list shows products that contain Caprylyl Methicone or its alternative names.
Use caution with Caprylyl Methicone for 0-6 month old babies. Some safety concerns have been identified.
May mess with natural hormone development in babies and children. This is especially important for babies whose skin and systems are still developing.
Acts like fake hormones in the body, confusing natural signals. This is especially important for babies whose skin and systems are still developing.
May harm organs like liver, kidneys, or lungs with repeated use. This is especially important for babies whose skin and systems are still developing.
Could weaken or confuse immune system. This is especially important for babies whose skin and systems are still developing.
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.
Possible negative effects on the environment This is especially important for babies whose skin and systems are still developing.
Caprylyl Methicone 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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