Polyisobutene

Polyisobutene molecular structure

0-6 month old newbornsSkin contact product

Check for Different Age (6 available)

Is this safe for 0-6 month old newborns to use Polyisobutene?

YES - Generally Safe
Danger Score: 3 (Lower is safer)
Quick Answer: Polyisobutene is generally considered safe for 0-6 month old babies when used in topical products. Always consult your pediatrician for newborns.

ℹ️General Overview

For newborns and babies 0–6 months: this ingredient is generally considered low risk in adults, but some government agencies have raised questions about possible organ effects and mild irritation. Because babies’ skin is more sensitive, it’s safer to be careful.

What to Do

Prefer products made for newborns and labeled for baby use. If a product lists polyisobutene and you choose to use it: apply a very small amount first to a patch of baby’s inner forearm and wait 24 hours to check for redness or swelling. Avoid using it on broken skin, on the face, or in the diaper area. For everyday moisturizers, choose simple, fragrance-free baby formulas when possible. If you are unsure, ask your pediatrician.

⚠️Warnings

Stop use and call your doctor if you see redness, rash, swelling, or any breathing problems after applying a product. Note: Environment Canada and the European Chemicals Agency have listed possible organ-system effects, and limited irritation (skin/eyes/lungs) has been reported by ECHA. The FDA allows limited use in food and industry reviewers have given guidance on safe use in cosmetics. These are the sources of the caution.

Confidence: MEDIUM

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Safety Risk Labels

This ingredient has the following documented risks:

Organ Risk: Canada's chemical review flagged polyisobutene as expected to be toxic or harmful to non-reproductive body systems and gave it a medium human-health priority. A European chemical agency also lists it as potentially toxic or harmful. This means there is real concern that repeated or high exposures could harm organs (for example liver, kidneys, or lungs).
Environmental: A European chemical regulator reported concerns about wildlife and environmental toxicity for this ingredient. That indicates it may pose a risk to animals or ecosystems if released into the environment.

Tap or hover over labels to see detailed risk information.

Alternative Names for Polyisobutene

This ingredient may also be listed as:

polyisobutene1-PROPENE,-2-METHYL-, HOMOPOLYMERPERMETHYL 108AISOBUTYLENE HOMOPOLYMERISOBUTENE HOMOPOLYMERHOMOPOLYMER 1-PROPENE,-2-METHYL-HOMOPOLYMER 2-METHYL-1-PROPENE1-PROPENE, 2-METHYL-, HOMOPOLYMER; 1-PROPENE, 2-METHYL-, HOMOPOLYMER(C4H8)X, X = 17; 1-PROPENE, 2-METHYL-, HOMOPOLYMER(C4H8)X, X = 17POLY ISOBUTYLENE2-METHYL-1-PROPENE, HOMOPOLYMERPOLYISOBUTYLENE

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

Common Questions About Polyisobutene

Is this ingredient safe for newborns to use Polyisobutene?

Yes, Polyisobutene is generally considered safe for 0-6 month old babies based on current research.

What are the organ risk risks of Polyisobutene for newborns?

May harm organs like liver, kidneys, or lungs with repeated use. This is especially important for babies whose skin and systems are still developing.

What are the environmental risks of Polyisobutene for newborns?

Possible negative effects on the environment This is especially important for babies whose skin and systems are still developing.

What products contain Polyisobutene?

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

When can infants start using products with Polyisobutene?

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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