Dry shampoo has become a staple in many Britons’ bathroom cabinets, offering a quick fix between proper hair washes.
The convenient spray or powder promises to absorb excess oil and refresh hair in seconds, but overusing it can have detrimental effects.
This popular time-saving solution may come with hidden health risks that extend beyond just temporary relief.
Co-founder and hair transplant surgeon at Smile Hair Clinic, Dr Mehmet Erdogan, discussed the concerning impacts of dry shampoo on both scalp health and overall well-being.
Overusing dry shampoo can cause an itchy, flaky scalp
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He warned that these products can cause more serious issues than most people realise. The effects range from mild irritation to potentially harmful chemical exposure.
Health experts released statistics showing dry shampoos can lead to scalp irritation and dermatitis, especially when used regularly instead of proper washing.
Dr Erdogan explained that dry shampoo creates a layer on the scalp that blocks hair follicles and prevents natural oil regulation. He said: “While occasional use is generally acceptable, many people now use these products three to four times between washes, causing constant buildup the scalp cannot properly eliminate.”
This buildup doesn’t just affect appearance, but can disrupt the scalp’s natural ecosystem and ph balance.
The Health and Safety Executive confirmed these concerns in its official guidance. According to research, the impact extends beyond irritation.
“This leads to flakiness, itchiness, and inflammation that mimics dandruff but actually stems from product irritation,” Dr. Erdogan said.
Most concerning, a study by Huntsman Cancer Institute found certain dry shampoo products manufactured before October 2021 contained benzene, a known carcinogen linked to blood cancers. However, many products found to contain this have been voluntarily recalled.
Epidemiologist at the institute, Britton Trabert, advised consumers to check product details and discard items containing benzene.
Dr Erdogan recommended several practical steps for those who use dry shampoo regularly. He said: “First, don’t replace regular washing with dry shampoo for extended periods.”
Also, keep the product at least six inches from your scalp and focus only on the roots. He added: “Finally, brush thoroughly after application to distribute the product and remove excess.”
The hair pro urged users to monitor for warning signs like persistent itchiness, redness, or flaking. These symptoms indicate your scalp is reacting negatively to the ingredients or buildup.
For those experiencing scalp issues, Dr Erdogan recommended using a clarifying shampoo to remove product residue.
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Be mindful of how often you use the product
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“A clarifying wash helps reset your scalp environment,” he noted. He suggested following with a moisturising conditioner as clarifying products can strip natural oils.
Non-aerosol powder versions might be safer for those with sensitive skin or respiratory concerns.
Dr Erdogan advised those with psoriasis, eczema, or seborrheic dermatitis to consult a specialist before using dry shampoo. He said: “The ingredients may worsen existing conditions or trigger new flare-ups.”
For most people, moderate use of current dry shampoo formulations poses minimal risk when part of a balanced hair care routine. The key is moderation and awareness of your unique scalp condition.
The expert concluded: “Dry shampoo serves a purpose when used correctly. Just don’t let convenience compromise your scalp health in the long term.”
