In October 2022, several major companies recalled dozens of dry shampoo aerosol products after detecting benzene, a known carcinogen. Four years later, the question regularly resurfaces: are these products still affected, and should we be concerned?
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What happened in 2022
An independent American laboratory analyzed 148 dry shampoos and detected benzene in a large majority of them. It notified the US health agency, and several manufacturers issued voluntary recalls. The source was identified: it wasn't the formula, but the propellant gas.
- The recalls involved batches products before October 2021
- Le benzene was not an ingredient, but a propellant contaminant
- The Health assessments have concluded that the levels detected were low likely to lead to consequences
This matter interests me for what it reveals the format, not for its side spectacular. Benzene was not in the formula: it came from the gas. In other words, the risk did not hold up to what the brand had chosen to put it in, but in the way that she had chose to project it.
Le Benzene, a known carcinogen — but at What dose?
Benzene is classified carcinogen, group 1, according to the Center international research on the cancer, based on leukemias observed in occupational exposure prolonged. The most samples contaminated exceeded largely exceeding the reference thresholds, but These were isolated maximums, and the health authorities have estimated that a daily exposure to levels measured should not have result.
How to know if your dry shampoo is affected
Four key indicators are enough to help you decide when faced with your bottle:
- The format: a powder or jar product does not contain propellant gas, so there is no issue
- The beginning of the INCI list: butane, isobutane or propane at the top indicate an aerosol
- The manufacturing date: the recalls targeted batches prior to October 2021
- The length of the formula: three to five ingredients leaves little room for a contaminant.
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To remember
- The benzene came from the propellant gas, not the cosmetic formula
- The 2022 recalls targeted batches produced before October 2021
- Health assessments have not identified any risk at the levels detected.
- The powder format eliminates the source of the problem.
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