The Short Answer
The only way to be 100% sure your dry shampoo is safe is to stop using aerosols.
The "spray" mechanism itself is the problem. Aerosol dry shampoos use liquid petroleum gases (LPGs) like propane, butane, and isobutane to blast the powder out of the can. These gases are frequently contaminated with benzene, a potent carcinogen linked to leukemia.
Your safest bet is a powder dry shampoo. These come in shaker bottles or pump dispensers, contain zero propellants, and rely on simple ingredients like rice starch or arrowroot powder to soak up oil.
If you absolutely cannot give up the spray, Amika is the safest option we've found. They are one of the rare brands to publicly release lab results confirming their aerosols test below detectable limits for benzene.
Why This Matters
In 2022, an independent lab called Valisure tested 148 batches of dry shampoo from 34 different brands. The results were shocking: 70% of them contained benzene.
Some samples contained up to 170 times the FDA limit for drugs (there is no set limit for cosmetics, which is a problem in itself).
Major brands like Dove, Tresemme, Bed Head, and Pantene recalled millions of cans. Other popular brands like Batiste and Not Your Mother's were implicated in the study but did not issue broad recalls, leading to class-action lawsuits.
This isn't about "toxins" in a vague sense. Benzene causes cancer. It targets blood-forming organs and is definitively linked to leukemia. Because you spray dry shampoo indoors, often in a small bathroom, you are inhaling a concentrated cloud of these chemicals directly into your lungs.
What's Actually In Safe Dry Shampoo
Safe dry shampoos (powders) have very simple ingredient lists. Here is what you want to see:
- Arrowroot Powder / Tapioca Starch ā These are safe, plant-based absorbents that soak up grease without clogging follicles.
- Kaolin Clay ā A gentle clay that detoxifies the scalp and adds volume. Safest Shampoo
- Cocoa Powder ā Often used in "dark" versions to prevent the dreaded white cast on brunettes.
- Essential Oils ā Used for scent instead of synthetic "Fragrance," which often hides phthalates. Is Fragrance In Shampoo Bad
What to Look For
Green Flags:
- Non-aerosol format: Shaker bottles, loose powders, or pump sprays.
- Transparent testing: Brands that share COAs (Certificates of Analysis) for benzene.
- Starch bases: Rice, corn, tapioca, or arrowroot as the first ingredient.
Red Flags:
- Propellants: Propane, Butane, Isobutane (the source of benzene).
- "Fragrance": A catch-all term for thousands of undisclosed chemicals.
- Talc: Can be contaminated with asbestos if not carefully sourced.
- Alcohol Denat: Extremely drying to the scalp and hair shaft.
The Best Options
If you are ready to ditch the benzene risk, these are the top performers.
| Brand | Product | Format | Verdict | Why |
|---|---|---|---|---|
| Primally Pure | Non-Toxic Dry Shampoo | Powder | ā | Best overall. Minimal ingredients (arrowroot, clay, cocoa), smells amazing, no white cast. |
| Acure | Dry Shampoo Powder | Powder | ā | Best budget pick. Easy to find at Target/Whole Foods. Certified organic. |
| Rahua | Voluminous Dry Shampoo | Pump | ā | Best application. Uses a non-aerosol "puff" bottle that mimics a spray without the gas. |
| Briogeo | Scalp Revival | Powder | ā | Best for scalp health. Contains binchotan charcoal to detoxify oily scalps. |
| Amika | Perk Up | Aerosol | ā ļø | Acceptable. If you must spray, they have the best safety testing transparency. |
| Batiste | Original | Aerosol | š« | Avoid. Implicated in high benzene levels; relies heavily on propellants and synthetic fragrance. |
The Bottom Line
1. Switch to powder. It takes 2-3 uses to get used to the application (sprinkle on roots, massage in), but it works just as well and eliminates the cancer risk.
2. Check your current stash. If you have aerosol dry shampoos from Dove, Tresemme, Pantene, or Not Your Mother's, check the batch codes against recall lists or just toss them.
3. Demand proof. If you stick with aerosols, only buy from brands like Amika that explicitly state they test every batch for benzene.
FAQ
Does Batiste still have benzene?
It's complicated. Batiste settled a $2.5 million class-action lawsuit in 2023 regarding benzene allegations. While they claim current batches are safe, they still use the same petroleum-based propellants (butane/isobutane/propane) that caused the issue. We recommend avoiding it to be safe.
Is "clean" aerosol dry shampoo safe?
"Clean" is a marketing term, not a legal one. Even "clean" brands like Living Proof use isobutane and propane as propellants. While they may have stricter quality control than drugstore brands, the risk of contamination exists whenever these gases are used.
How do I use powder dry shampoo without making a mess?
Don't shake it directly onto your part. Shake a small amount into your hands, rub them together, and then massage into your roots like you are shampooing. This prevents white spots and gives you more volume.
Can I just use baby powder?
Technically yes, but be careful. Ensure it is talc-free (cornstarch-based). Traditional talc baby powder has its own asbestos contamination risks. Is Talc Safe
References (19)
- 1. time.com
- 2. ctvnews.ca
- 3. loveamika.com
- 4. mamavation.com
- 5. medpagetoday.com
- 6. loveamika.com
- 7. medpagetoday.com
- 8. mamavation.com
- 9. lawsuit-information-center.com
- 10. ruanliving.com
- 11. beautyeq.co.nz
- 12. lawsuit-information-center.com
- 13. youtube.com
- 14. jdsupra.com
- 15. milberg.com
- 16. thefiltery.com
- 17. ceh.org
- 18. thefiltery.com
- 19. purewow.com