Which countries run stem-cell trials for Hair Loss & Restoration?
The geography spans 6 countries and is concentrated: United States carries roughly 27% of the country mentions (2026-08-29).
Country distribution
| Country | Studies with a site there |
|---|---|
| United States | 4 |
| China | 4 |
| Indonesia | 3 |
| Pakistan | 2 |
| Egypt | 1 |
| South Korea | 1 |
A study with sites in several countries is counted once per country, taken from the location block of each registry record.
What the map means for Hair Loss & Restoration
Registrations cluster in East Asia and the Middle East alongside large hair-transplant markets. Regulatory status of exosome products for hair differs sharply between those markets and the US and EU, where several regulators have issued explicit warnings about unapproved exosome injections.
Where recruitment is actually open
| Country | Open studies with a site there |
|---|---|
| China | 3 |
| United States | 1 |
| Indonesia | 1 |
What travelling for a trial actually involves
Before treating a foreign site as an option, confirm the follow-up burden in writing. Trials measure outcomes on a schedule; missing those visits makes the data unusable and leaves you outside the safety net the protocol provides.
Multi-country studies, named
Registered studies with sites in more than one country — the clearest evidence of collaboration rather than a single-centre series.
No sampled study for this condition lists sites in more than one country, so the research base here is made of single-centre work rather than multinational collaboration.
Why trial geography is not a shortlist
The map is drawn by policy and money. Permissive or well-defined regulatory pathways attract registrations and large research budgets attract more still. None of that transfers to the private clinic advertising in the same city, which may operate under no comparable supervision.
Before treating geography as a shortlist, read the legality overview by country and what "best country" actually means here.
When these studies started
Registrations by start year since 2020: 2021 (2), 2023 (1), 2024 (2), 2025 (3), 2026 (2). Activity for this condition spans 2011 to 2026, which shows whether interest is growing, flat or past its peak.
Frequently asked
Which countries run stem-cell trials for Hair Loss & Restoration?
Sites are registered in 6 countries; the largest is United States (~27% of country mentions, 2026-08-29).
Does a country with many trials mean better treatment there?
Volume tracks funding and law, not outcomes. The relevant question is what oversight covers the specific clinic and product you are considering.
Are trial sites and commercial clinics the same thing?
Usually not. The hospital running a registered study is often unrelated to clinics marketing treatments to international patients in the same city.
Registry and literature counts retrieved 2026-08-29 (ClinicalTrials.gov API v2; PubMed E-utilities). Registration or publication volume measures research activity, not effectiveness or approval. Educational information — not medical advice; verify product, indication, legal pathway and evidence with an independent qualified physician. Page generated 2026-08-29. See our editorial standards.