Is 1,4-Dioxane Safe? What You Need to Know
Safety Score
Concern Level: very-high
1,4-Dioxane has significant safety concerns. We recommend avoiding products containing this ingredient.
What Is 1,4-Dioxane?
A byproduct of ethoxylation found as a contaminant in many conventional cleaning and personal care products. Not intentionally added but present through manufacturing.
Commonly found in: shampoos, body washes, detergents, bubble bath
Safety Research & Evidence
A byproduct of ethoxylation found as a contaminant in many conventional cleaning and personal care products. Not intentionally added but present through manufacturing.
Regulatory status: EPA classifies as likely human carcinogen; not regulated in cosmetics
Health Concerns
probable carcinogen
Evidence: StrongResearch indicates probable carcinogen may be associated with exposure to 1,4-Dioxane. Particularly concerning for children, infants, pregnant women.
organ toxicity
Evidence: StrongResearch indicates organ toxicity may be associated with exposure to 1,4-Dioxane. Particularly concerning for children, infants, pregnant women.
environmental persistence
Evidence: StrongResearch indicates environmental persistence may be associated with exposure to 1,4-Dioxane. Particularly concerning for children, infants, pregnant women.
Vulnerable Populations
Extra caution recommended for: children, infants, pregnant women
Safer Alternatives
| Alternative | Safety Score |
|---|---|
| Products made without ethoxylation | 9/10 |
How to Avoid 1,4-Dioxane
- Read ingredient labels carefully for "1,4-Dioxane" or its chemical synonyms
- Choose products with third-party certifications (EWG Verified, Made Safe)
- Consider alternatives like Products made without ethoxylation
- Check the EWG Skin Deep database for product ratings
- Look for "1,4-Dioxane-free" labels on product packaging
Frequently Asked Questions
Is 1,4-Dioxane safe for babies?
No, we recommend avoiding 1,4-Dioxane in products used on or around babies due to their developing systems.
What are the safest alternatives to 1,4-Dioxane?
Safer alternatives include Products made without ethoxylation (safety score: 9/10).
Is 1,4-Dioxane banned in other countries?
Regulatory status: EPA classifies as likely human carcinogen; not regulated in cosmetics
How do I know if my product contains 1,4-Dioxane?
Check the full ingredient list on the product label. 1,4-Dioxane may also appear under different chemical names. Using apps like EWG Healthy Living or Think Dirty can help identify it.
Related Safety Guides
References
- Luo Y et al. (2011). 1,4-Dioxane contamination of personal care products PMID: 22027025