Could a good bacteria on your scalp regrow hair?
NCT ID NCT07370519
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether applying a probiotic (Lactobacillus reuteri) to the scalp daily for 12 months can safely increase hair density in people with androgenetic alopecia (male or female pattern baldness). About 388 adults aged 18-60 will be randomly assigned to receive the active probiotic, an inactivated version, a placebo, or the standard treatment minoxidil. Neither participants nor doctors will know who gets what. The main goal is to measure changes in hair count per square centimeter after one year.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Lactobacillus reuteri (a probiotic bacteria) applied as a topical scalp solution
What this could lead to
If it works, this could offer a new, natural-seeming option for treating common hair loss by balancing scalp microbes, possibly as an alternative or add-on to current treatments.
What could go wrong
This is a phase 2 trial, so it is still early. The probiotic may not improve hair growth more than placebo, and results may not apply to everyone. Topical probiotics are generally safe, but skin irritation is possible.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Shenzhen People's Hospital
RECRUITINGShenzhen, Guangdong, China
Contact Phone: •••-•••-•••• Email: •••••@•••••