What is AMT?
AMT stands for Autologous Micrografting Technology, a procedure that uses your own scalp tissue to encourage hair regrowth. Unlike hair transplants, which involve surgical intervention, AMT is minimally invasive and designed to harness the body’s natural regenerative capabilities.
The process involves:
- Taking a small tissue sample from the patient’s own scalp (typically the back of the head)
- Mechanically processing the tissue to extract stem cells, progenitor cells, and growth factors, creating “micrografts”
- Injecting the micrografts into thinning or balding areas
The stem cells from your own scalp in the micrografts are thought to encourage hair growth by revitalizing dormant hair follicles. The frequency of the recommended sessions varies from clinic to clinic, but generally they are advised once every 3 to 18 months.
Does AMT really work?
The short answer: early evidence suggests it can. Several studies have explored AMT’s effectiveness, and while long-term data is still limited, the results so far are promising.
We’ve broken down some of the key studies below:
2017 Study (Stem Cell Investigation Journal)
Researchers treated 11 patients with male pattern baldness using stem cells derived from hair follicles. They received two sessions 60 days apart. The study reported noticeable improvements in hair density of approximately 29% after 23 weeks in the treated areas, compared to less than 1% improvement in the placebo.
2024 Study (Aesthetic Plastic Surgery Journal)
Research found that micrografts containing follicle stem cells injected into the scalps of 83 men and women with androgenetic alopecia “seem to have promising effects on hair regrowth.” This study included both men and women, reinforcing AMT’s potential across genders.
2025 Trials (Skin Appendage Disorders Journal)
Two separate trials evaluated the impact of more than one session, with follow-ups six months later:
- Trial 1: 17 patients received a single session; 65% showed improvement in hair outcomes.
- Trial 2: 13 patients underwent two sessions spaced six months apart; 69% experienced increased hair density.
Interestingly, the authors of these studies emphasize the benefits of combining AMT with established treatments like Finasteride and Minoxidil. Finasteride works by reducing levels of DHT, the hormone responsible for male pattern baldness, while Minoxidil stimulates follicle activity. Pairing these with AMT could offer a dual approach: preventing further hair loss while encouraging regrowth.
Why do some people go for AMT over other hair loss treatments?
Many patients are drawn to AMT because it is non-surgical and requires minimal downtime. Unlike hair transplants, which involve surgery, stitches, and a recovery period, AMT allows patients to return to business as usual immediately after the procedure.
However, while early results are encouraging, long-term data is still limited. Most studies have follow-ups of only about six months after treatment, so we still don’t know:
- How long the results last beyond six months
- Whether maintenance sessions are needed, and if so, how often
- Whether results improve or plateau with repeated treatments
Until these questions are answered through longer-term studies, AMT should only be viewed as a promising complementary treatment to proven treatments such as Finasteride and Minoxidil.
All of our blog articles are reviewed by our Medical Director before publication.
