Lotion and cream sunscreens, particularly mineral formulas, carry the lowest risk of benzene contamination. Benzene is not an intentional sunscreen ingredient. It shows up as a contaminant during manufacturing, primarily in aerosol spray products. When independent lab Valisure tested 661 sunscreen and after-sun care samples across 108 brands, 192 samples had detectable levels of benzene, and the problem was concentrated in sprays rather than lotions and creams.
No single brand can guarantee zero benzene across every batch it has ever produced. But understanding where the contamination comes from makes it much easier to choose products with the lowest possible risk.
Why Benzene Shows Up in Sunscreen
Benzene is never listed on a sunscreen label because it is not supposed to be there. It enters products as a manufacturing by-product, most often through petrochemical-derived ingredients. The three main culprits are aerosol propellants (like isobutane and butane), certain thickening agents called carbomers, and fragrance components made from hydrocarbons. The FDA has specifically flagged isobutane propellant and carbomers as ingredients that indicate a higher likelihood of benzene contamination.
The connection to propellants is why aerosol sprays dominate the recall and contamination lists. The pressurized gas that pushes sunscreen out of a spray can is refined from petroleum, and benzene can survive that refining process in trace amounts. Lotions and creams don’t need propellants at all, which removes the single biggest source of contamination from the equation.
Product Types With the Lowest Risk
If you want to minimize your benzene exposure, the format of your sunscreen matters more than the brand name.
- Mineral lotions and creams: These use zinc oxide or titanium dioxide as their active ingredients and come in squeeze tubes or pump bottles. They skip both the propellants and many of the petrochemical-derived inactive ingredients linked to contamination. This makes them the lowest-risk category overall.
- Chemical lotions and creams: These use UV-filtering chemicals like avobenzone or homosalate but still avoid aerosol propellants. They may contain carbomers as thickeners, which carry a small contamination risk, but they eliminate the propellant issue entirely.
- Mineral sunscreen sticks: Solid stick formulas have a simple ingredient list and no propellant. They are another low-risk option, though they can be harder to apply evenly over large areas.
- Aerosol sprays: These carry the highest risk because of their reliance on hydrocarbon propellants. Not every spray is contaminated, but the risk is structurally higher with this format.
What the Testing Actually Found
The most comprehensive independent analysis tested 661 sunscreen samples representing over 406 unique products. Of those, 192 samples (about 29%) had detectable benzene. That means roughly 7 out of 10 samples tested clean, but the contaminated ones weren’t always predictable by brand alone. Some batches from the same brand tested fine while others did not, which points to inconsistencies in manufacturing and ingredient sourcing rather than a problem with any one company’s formula.
The FDA’s limit for benzene in drug products is 2 parts per million. Some contaminated sunscreen samples exceeded this threshold. Banana Boat Hair & Scalp Sunscreen Spray SPF 30 was recalled in 2022, with additional lot codes added in January 2023, specifically because of benzene above acceptable levels. That recall has since been completed and terminated by the FDA.
How to Check Your Current Sunscreen
If you already have a sunscreen at home and want to check whether it was part of a recall, look for the lot code printed on the bottom or back of the container. You can search active and completed recalls on the FDA’s recall database at fda.gov under “Safety” and then “Recalls, Market Withdrawals, & Safety Alerts.” Enter the brand name or product description to see if any lot codes match yours.
For products that were never formally recalled, there is no public batch-by-batch benzene database. This is one reason choosing a lower-risk product format is more practical than trying to verify individual containers after purchase.
Choosing a Safer Sunscreen
A few straightforward guidelines will steer you toward products with minimal benzene risk:
- Pick a lotion, cream, or stick over a spray. This is the single most effective step. The propellant in aerosol cans is the primary contamination pathway.
- Look for mineral active ingredients. Zinc oxide and titanium dioxide are the two mineral UV filters approved in the U.S. They appear in the “Active Ingredients” section of the label. Products listing only these two ingredients tend to have simpler, less petrochemical-heavy formulas.
- Check the inactive ingredients for carbomers. Carbomer 940, carbomer 934, and similar thickeners have been linked to benzene contamination. The FDA asked the U.S. Pharmacopeia to phase out several carbomer formulations, with a target date of August 2025. Not every product containing a carbomer is contaminated, but avoiding them reduces one more potential source.
- Look for third-party testing seals. Some brands voluntarily submit products for independent benzene screening and publish the results. This is becoming more common as consumer awareness grows.
Why Skipping Sunscreen Is Not the Answer
Benzene is classified as a known human carcinogen, which understandably alarms people. But the contamination levels found in sunscreen, while unacceptable from a manufacturing standpoint, are typically trace amounts. The cancer risk from unprotected UV exposure is well established and far more immediate. Skin cancer is the most common cancer in the United States, and consistent sunscreen use significantly reduces that risk.
The practical move is not to stop wearing sunscreen. It is to switch from an aerosol spray to a mineral lotion or cream. You get the same UV protection with virtually none of the benzene risk. If you prefer the convenience of a spray, non-aerosol pump sprays avoid the propellant issue, though they can be harder to find on store shelves.