Rankings / Toxins

Benzene

Toxins · Volatile organic compound

Critical exposure concern

Reviewed by Read Off Label · Last reviewed · How we grade

air-pollutant
8.6 / 10
CRITICAL
Mag 8 Ev 10 Prev 8

Bottom line

Read Off Label rates Benzene a CRITICAL exposure concern (8.6/10) based on very strong evidence of high harm magnitude and high occupational exposure prevalence.

Valisure independent lab testing has repeatedly exposed benzene contamination in consumer products — dry shampoo (2022), sunscreens (2021), hand sanitizers (2021), acne products from benzoyl peroxide degradation (2024).

This entry describes an exposure rather than an added intervention.

What the evidence says

Valisure independent lab testing has repeatedly exposed benzene contamination in consumer products — dry shampoo (2022), sunscreens (2021), hand sanitizers (2021), acne products from benzoyl peroxide degradation (2024). Attached garages are a common residential source — seal the home/garage interface. Secondhand smoke is a major source for nonsmokers.

Mechanism

Aromatic hydrocarbon; IARC Group 1 carcinogen; sources: gasoline, vehicle exhaust, tobacco smoke, attached-garage homes, some personal care product contaminants (2021-2024 benzoyl peroxide/sunscreen/dry shampoo recalls)

Reported exposure / mitigation context

Exposure sources include vehicle or garage idling and tobacco smoke; product recalls have identified additional sources

Citations

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Common questions

How harmful is Benzene?
Benzene is rated CRITICAL exposure concern (8.6/10) on the Read Off Label scale, derived from very strong evidence of high harm magnitude and high occupational exposure prevalence.
How does Benzene cause harm?
Aromatic hydrocarbon; IARC Group 1 carcinogen; sources: gasoline, vehicle exhaust, tobacco smoke, attached-garage homes, some personal care product contaminants (2021-2024 benzoyl peroxide/sunscreen/dry shampoo recalls)
What exposure context is reported for Benzene?
Valisure independent lab testing has repeatedly exposed benzene contamination in consumer products — dry shampoo (2022), sunscreens (2021), hand sanitizers (2021), acne products from benzoyl peroxide degradation (2024).

This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.