Shampoo Recalled in Canada and the US Due to Bacterial Contamination Risk
Health Canada and the United States Food and Drug Administration (FDA) have issued a recall for specific lots of dry shampoo products due to the potential presence of benzene, a chemical classified as a human carcinogen. The recall affects several aerosol-based hair care products, primarily those manufactured by Unilever, following internal testing that identified elevated levels of the substance in certain batches.
Scope of the Affected Products

The recall encompasses a variety of dry shampoo brands, including Dove, Nexxus, Suave, TRESemmé, and Bed Head. According to the recall notices posted by federal regulators in both countries, the products were manufactured before October 2021.
The presence of benzene in these aerosol products is attributed to the propellant used to spray the product from the can. While benzene is not an intentional ingredient in the shampoos, it can be introduced during the manufacturing process as a byproduct of the propellant. Exposure to benzene can occur through inhalation, oral ingestion, or skin contact, and it is linked to serious health conditions, including leukemia and other blood disorders of the bone marrow.
Regulatory Response and Consumer Guidance
Health Canada and the FDA have categorized this as a safety measure to mitigate potential health risks to consumers. Unilever has stated that it is working with retailers to remove the affected inventory from store shelves.
Consumers are advised to check the lot codes on their product containers against the lists provided on the Health Canada website or the official company recall portal. Individuals who possess the recalled items are instructed to stop using them immediately and discard the products according to local household hazardous waste guidelines.
The companies involved have confirmed that they are not aware of any adverse events reported to date related to the use of these specific dry shampoos. However, the recall remains in effect while regulators continue to monitor the distribution and disposal of the impacted batches.
Precedent for Aerosol Recalls
This action follows a series of similar recalls within the personal care industry over the past two years. Several manufacturers have faced scrutiny regarding the chemical composition of aerosolized products, leading to increased testing protocols for benzene and other contaminants.
Industry analysts note that this recall reflects ongoing efforts by regulatory agencies to address chemical stability in pressurized consumer goods. Unilever has indicated that it is conducting further testing to ensure that future production cycles meet safety standards, while the agency’s investigation into the long-term supply chain impacts of the propellant contamination remains open.