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Blog > Hair Health > The Lowdown on Benzene in Dry Shampoo: Unraveling the Facts

The Lowdown on Benzene in Dry Shampoo: Unraveling the Facts

The hair care industry has been buzzing recently with a concern that's more serious than just bad hair days. The focus is on a compound called benzene that's been detected in some dry shampoos. With rising consumer awareness and health concerns, it's crucial to shed light on what this means for the products we use every day.

We'll unravel what benzene is, why it's found in dry shampoo, how it's regulated, and how you can identify benzene-free products.

dry shampoo without benzene

What is Benzene

Benzene is a colorless or light-yellow liquid chemical at room temperature, and it's been used primarily as a solvent in various industries. However, its presence is not just limited to industrial applications. Trace levels of benzene can also be found in many everyday items like cigarette smoke, gasoline, glues, adhesives, cleaning products, and paint strippers. But the question arises, why should we be concerned about benzene?

The answer lies in benzene's health implications. It's classified as a known human carcinogen by various regulatory agencies including the U.S. Centers for Disease Control and Prevention, the Environmental Protection Agency (EPA), and the World Health Organization. Long-term exposure to any concentration of benzene greater than 2 ppm (parts per million) is considered unsafe.

Why is Benzene Found in Dry Shampoo?

Now, let's dive into why benzene might be found in dry shampoo. Many petroleum products are used as raw materials or inactive ingredients in consumer healthcare products. In dry shampoos and body sprays, "propellants" like butane, isobutane, propane, and alcohol are commonly used. These compounds could potentially be sources of benzene contamination.

Despite the potential risk, it's important to remember that not all dry shampoos contain benzene. In fact, many dry shampoo products tested had no detectable level of benzene, proving that such products can adhere to strict limits.

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Benzene Regulations and Dry Shampoo

Regulatory bodies like the FDA recognize the dangers of benzene and have set certain restrictions for its use. In the pharmaceutical industry, for instance, benzene is listed as a "Class 1 solvent" that should not be employed in the manufacture of drug substances, excipients, and drug products due to its unacceptable toxicity. However, this guidance may be confused with emergency limits that don't apply to cosmetic products like dry shampoos. Therefore, there's a growing call for the FDA to clarify that there's no acceptable level of benzene in cosmetic products and to define a reasonable detection limit.

The EPA has estimated that lifetime exposure to benzene at 0.4 parts per billion (ppb), or 0.0004 ppm, will increase the risk of developing cancer in humans at the same rate as the FDA uses to set regulatory limits on other trace impurities like N-nitrosamines. This can be used as guidance for potential exposure calculations for products like dry shampoo that may regularly be used indoors and in enclosed spaces.

Benzene Detection in Dry Shampoo Products

In a recent study, Valisure, an independent lab and pharmacy, tested and detected high levels of benzene in several brands and batches of dry shampoo products. The results were alarming: 70% of samples showed quantifiable levels of benzene, and some samples had up to 170 times the FDA's conditionally restricted concentration limit of 2 parts per million (ppm). The highest detected levels were in 3 lots of dry shampoo products from 1 brand that contained spray with over 100 ppm of benzene. However, it's worth noting that benzene was not detected or was below the limit of quantitation in 45 lots of dry shampoos from 23 different brands.

There was significant variability from batch to batch, even within a single brand, and between subsequent sprays from some bottles, suggesting inconsistent product mixtures in some products. This highlights the need for improved regulation and quality control in the production of these products.

Dry Shampoo Powder vs. Spray

Dry shampoo comes in two main forms: powder and aerosol spray.

As the concern about benzene contamination in dry shampoo comes to light, one might start exploring different types of dry shampoos available in the market, specifically powder and spray versions. Both types aim to absorb excess oil from your hair, extend the life of your hairstyle, and add volume, but they do so in slightly different ways and with varying ingredients. Let's take a look at each:

Dry Shampoo Powder

Dry shampoo powder is typically packaged in a jar or shaker-like container. To use it, you sprinkle or dab the powder onto your scalp, let it absorb the oil for a few minutes, and then brush or massage it out.


  1. Less Chemicals: Powder dry shampoos tend to have simpler ingredient lists and are less likely to contain potentially harmful chemicals like propellants, which can potentially introduce benzene into the mix​.
  2. Better for the Environment: Without the need for aerosol propellants, powder dry shampoos are often more environmentally friendly.
  3. Long-Lasting: A little bit of powder can go a long way, so these products often last longer.


  1. Harder to Apply: Applying powder evenly can be tricky, especially for those with darker hair as it can leave a visible residue – unless you’re using a dry shampoo powder that has been formulated to blend in seamlessly in all hair types, such as this dry shampoo powder.
  2. Messy: Powder can be messy to apply and might require some cleanup afterward.

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Dry Shampoo Spray

Dry shampoo sprays are easy to use: you simply spray the product onto your roots, wait for it to absorb the oil, and then brush it out.


  1. Easy to Apply: The spray format makes it easy to apply the product evenly across your scalp.
  2. Quick and Convenient: Sprays are quick to use and a convenient option for on-the-go touch-ups.


  1. Potential for Harmful Chemicals: Spray dry shampoos often contain propellants like butane, isobutane, and propane, which could potentially be sources of benzene contamination​.
  2. Environmental Impact: Aerosols aren't the best choice for the environment due to the use of propellants.

In summary, both powder and spray dry shampoos have their benefits and drawbacks. Your choice will depend on your specific needs, lifestyle, and concerns about potential harmful ingredients. Always remember to check the ingredient list of any product you choose to use!

Does Goldie Locks Dry Shampoo Contain Benzene?

benzene free dry shampoo

No, Goldie Locks Dry Shampoo Powder does not contain benzene. The product is specifically formulated to be free of benzene, along with other potentially harmful ingredients such as sulfates, parabens, phthalates, gluten, and DMDMH.


As consumers, it's important to be aware of the products we use daily and their potential health impacts. While the presence of benzene in some dry shampoos is concerning, remember that many brands and batches tested showed no detectable levels of benzene.

Until further research and regulation is in place, consider looking for dry shampoos that explicitly state they are benzene-free. For those particularly concerned about benzene exposure, it might be worth exploring alternatives to a dry shampoo aerosol, such as this dry shampoo powder.

Dry shampoo powder to extend your wash

Dry Shampoo Powder


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