Can Dry Shampoo Cause Hair Loss? Risks, Research & Safe Use

Dry shampoo is a time-saving staple for oily roots and no-wash days, but does this convenience come at a cost?

In this guide, we will explore how dry shampoo works, whether it causes hair loss, and how to apply it safely, allowing you to refresh your hair with no negative impact on scalp health.

How Does Dry Shampoo Work and Why Does It Matter?

Put, dry shampoo contains either alcohol or starch that absorbs excess oil (sebum), sweat, and grease around hair follicles. This makes hair look cleaner and fresher. 

Application and Impact on the Scalp

Dry shampoo is usually applied to the roots and then brushed or rubbed into the hair. This must be done carefully, however, as spraying too closely to the scalp or overspraying can lead to buildup. 

The microbiome and moisture balance of the scalp can be altered by excessive use of products. This disruption can affect how hair functions, increase the risk of infection, clog pores and lead to inflammation that causes eventual hair loss.

Dry Shampoo vs Washing: Why It Matters

The use of dry shampoo is widespread due to its convenience and ability to prolong the life of a wash. 

The absorption of oil, sweat, and fragrance extends the fresh, volumised hair look up to twice as long.

It is vital to note that dry shampoo does not clean the scalp. Regular shampoo eliminates dirt, dead skin and product residue. Dry shampoo helps to cover this up, but does not cleanse it away, which can result in buildup on the scalp. A healthy balance has to be struck between using dry shampoo and actual hair washing. 

Read more about how to wash your hair after a transplant—the same gentle cleansing principles can apply to everyday hair care too.

Can Dry Shampoo Cause Hair Loss?

Dry shampoo does not directly cause hair loss. However, its overuse or improper use may lead to scalp inflammation over time, and this can result in thinning hair. Dry shampoo that combines with sebum (natural hair oil) and dead skin cells on the scalp can clog pores and hair follicles, leading to slowed hair growth, inflammation, an itchy scalp and ultimately hair loss. 

How often should I use dry shampoo?

No more than twice a week, ideally. Using dry shampoo more than twice a week without washing will likely lead to buildup, clogged follicles, and scalp irritation.

To prevent such side effects, alternate the use of dry shampoos with regular washing and scalp care routine. 

For more general tips on how to prevent hair loss, see our handy guide here.

What Does the Research Say About Dry Shampoo and Hair Loss?

Despite a lack of concrete clinical data indicating that the use of dry shampoo causes hair loss, studies suggest that clogged pores and improper scalp practices can impede hair growth.

Anecdotal reports from users of dry shampoo have complained of irritation, breakage, and hair shedding after prolonged use of certain dry shampoos, particularly those with aerosol-based formulations. 

One widely reported anecdote involved a woman who experienced blisters and bald patches on her scalp due to the extensive use of aerosol dry shampoo. As she stopped using the product, her symptoms improved, indicating that product use can sometimes be hazardous when built up.

Minimal studies have directly documented the link between dry shampoo and hair loss. However, the overall risk of inadequate scalp care is still commonly recognised.

Which Dry Shampoo Ingredients Are Harmful?

Several ingredients used in dry shampoos can be potentially damaging to the scalp and hair, primarily due to their drying or irritating effects on the skin. Some of the key culprits are:

• Alcohols and Silica Particles: Used to absorb oil, these compounds can dry the scalp and make hair brittle.
• Fragrances and Preservatives: artificial perfumes and parabens can cause skin irritation and inflammation.
• Propellants and Microplastics: Propane, butane and isobutane can be found in aerosol products. Such ingredients can be both irritating and environmentally harmful.
• Talc: Although most dry shampoos are made of purified talc, it is necessary to note that raw talc may have asbestos in it. It is essential to check the ingredients used before trying out products. 

How to Use Dry Shampoo Safely to Avoid Hair Follicle Damage

Moderation, proper use, and regular washing are the best ways to use dry shampoo to prevent damage to hair follicles. 

1. Limit dry shampoo use to once or twice a week only. Alternate this regimen with regular shampoos to maintain the health of your hair and scalp. 
2. Proper application: Hold your spray 6-8 inches away from the scalp.  Avoid direct spraying on one spot. Let your scalp breathe between uses.
3. Proper removal: To remove dry shampoo buildup from the scalp effectively, brush through your hair with a soft-bristled brush before washing to loosen any clumps of product that have accumulated. Then use a balancing shampoo that is gentle, sulfate-free and clarifying to cleanse both scalp and hair. This will prevent clogged follicles and inflammation that comes with excessive use. 

What Alternatives or Complementary Practices Support Scalp Health?

There are several helpful practices for maintaining a healthy scalp, including scalp massage (when combined with essential oils), herbal therapy, and dietary adjustments.

Exfoliation and Cleansing:  A gentle scrub or chemical exfoliant should be used once a week to clear product buildup and stimulate the follicles.

Lifestyle: Hair is best nourished through a healthy diet, reduced stress, quality sleep and regular exercise. Nutrients such as iron, vitamin D, vitamin C, protein, and biotin are essential for maintaining healthy and thick hair. 

Hair loss is often an indication of more fundamental systemic difficulties, and it’s essential to be aware of your general health and watch out for potential underlying disorders that could cause shedding.

FAQs

Can dry shampoo cause permanent hair loss?

No clear evidence has been shown to indicate that dry shampoo directly causes hair loss.

How often is too often to use dry shampoo?

More than twice a week can lead to build-up, flakiness, itchiness and inflammation of the scalp and hair. 

Can using dry shampoo trigger telogen effluvium?

Yes, if the hair growth cycle is built up to the point of inflammation, it can become interrupted, resulting in shedding. 

How can I effectively remove dry shampoo residue?

Brush generously with a soft-bristled brush, then wash with a clarifying sulfate-free shampoo.

Is there a ‘best’ dry shampoo for hair health?

If you have thinning hair, go for dry shampoos that are free of alcohol, parabens, and strong fragrances. Lightweight, non-aerosol formulas are generally safer for sensitive or thinning scalps.

Conclusion 

Dry shampoo is beneficial in moderation, but overuse can harm scalp health and contribute to excessive shedding. Prioritise proper hair care, maintain a well-balanced and nutrient-rich diet, and manage stress levels effectively.

References 

• Jacoby, S., 2023. Is dry shampoo doing more harm than good? We asked the experts. [online] TODAY.com. Available at: https://www.today.com/health/skin-beauty/should-you-use-dry-shampoo-rcna80826 [Accessed 28 Jun. 2025].
• Ludmann, P., 2024. Dry shampoo: Dermatologists’ tips for getting your best results. American Academy of Dermatology. [online] Available at: https://www.aad.org/public/everyday-care/hair-scalp-care/hair/dry-shampoo-best-results [Accessed 28 Jun. 2025].
• Miller, K., 2016. This woman says dry shampoo made her hair fall out. Self.com. [online] Available at: https://www.self.com/story/this-woman-says-dry-shampoo-made-her-hair-fall-out [Accessed 28 Jun. 2025].
• Stanborough, R.J., 2019. Can using dry shampoo damage your hair? Medically reviewed by Cynthia Cobb, DNP, APRN, WHNP‑BC, FAANP. Healthline. [online] Available at: https://www.healthline.com/health/is-dry-shampoo-bad-for-your-hair [Accessed 28 Jun. 2025].