A recent recall of benzoyl peroxide acne products has sparked safety concerns due to the potential formation of benzene—a known carcinogen—when products are stored improperly. Learn how to use and store these treatments safely, and explore effective alternatives for clearer skin without added risk.
Benzene in Acne Products: What You Need to Know
Benzoyl peroxide is one of the most widely used ingredients for treating acne. But recent testing has raised concerns that, under certain conditions, it can form benzene, a known carcinogen.
The U.S. Food and Drug Administration (FDA) recently announced a voluntary recall of several benzoyl peroxide products. Testing found that over 90% of products had either undetectable or extremely low levels of benzene, but some—especially when exposed to heat—contained significantly higher levels.
What Caused the Concern?
An independent lab, Valisure, tested 66 acne products by storing them at 50°C (simulating conditions like a hot car). Their results showed:
- 42 products had over 10 parts per million (ppm) of benzene
- 17 products had over 100 ppm
- 2 products had over 1,500 ppm
These numbers are well above what is considered safe. Although not all products tested showed these levels, the risk appears to increase with heat and time.
What Health Canada and Dermatologists Say
Canada responded early, with a 2024 joint statement from the Canadian Dermatology Association (CDA) and the Acne and Rosacea Society of Canada (ARSC).
According to Dr. Alexandra Kuritzky, a CDA spokesperson, the real-world implications of the lab study are still unclear. However, she continues to recommend benzoyl peroxide with proper handling and storage.
“Store products at room temperature—not in hot cars or steamy bathrooms—and discard them once they expire,” says Dr. Kuritzky.
Safe Use Tips for Benzoyl Peroxide Products
- Store at room temperature
- Avoid leaving in hot cars or bathrooms
- Do not use past expiry date
- Follow manufacturer’s instructions carefully
Worried? Consider These Acne Treatment Alternatives
If you’re concerned about potential benzene exposure, talk to your healthcare provider about these effective, benzene-free alternatives:
- Salicylic acid
- Glycolic acid
- Topical retinoids
- Azelaic acid
For persistent acne or skin reactions, it’s best to consult a board-certified dermatologist.
Final Thoughts
Benzoyl peroxide remains an effective and accessible acne treatment—but only when stored and used safely. If you’re unsure whether your acne product is safe, check for recalls, follow storage instructions, and explore other acne-fighting options.
Not sure which acne treatment is right for you?
In Ontario, pharmacists can now assess and prescribe treatments for certain minor ailments, including mild to moderate acne. Speak with a Centrum Pharmacist today. We can review your products, recommend safer alternatives, and help you manage your skin health safely and effectively. Visit us in store or online
Disclaimer: The medical information on this site is provided as an information resource only and is not to be used or relied on for any diagnostic or treatment purposes. This information does not substitute for professional diagnosis and treatment. Please do not initiate, modify, or discontinue any treatment, medication, or supplement solely based on this information. Always seek the advice of your healthcare provider first. Full disclaimer here
