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research Non-Shaven Follicular Unit Extraction With Pre-Trimming Method and a Large Session Hair Transplantation: Experience of a Brazilian Surgical Team

July 2026 in “Aesthetic Surgery Journal Open Forum”

This study concluded that non-shaven follicular unit extraction with a pre-trimming method and large session transplantation is a safe and effective treatment for advanced androgenetic alopecia.

research The Effect of One Session Low Level Laser Therapy of Extracted Follicular Units on the Outcome of Hair Transplantation

6 citations , January 2016 in “Journal of lasers in medical sciences”

This study found that a single session of low level laser irradiation did not significantly affect hair growth outcomes in transplanted follicles for patients with androgenic alopecia.

research Author's reply

January 1996 in “Lasers in Surgery and Medicine”

This letter to the editor by Walter P. Unger discusses topics related to hair transplantation and reports no new research findings.

research Back to the beginning: a retrospective review of the early Forums

September 2012 in “Hair transplant forum international”

This article reviews the controversies that led to the establishment of the ISHRS and its impact on the evolution of hair transplantation, reporting no new clinical results.

research Review Article - Changing trends in hair restoration surgery

December 2006

This article discusses the latest trends in hair restoration surgery and reports no new clinical findings, highlighting the continued unsatisfactory nature of drug therapies for androgenetic alopecia.

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Learn

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learn Hair Transplant

Surgery that moves hair follicles from the back of the scalp to thinning areas

How long does a hair transplant procedure take? A hair transplant procedure typically takes 4 to 8 hours.
How long do hair transplants last? Clinics say transplanted hair usually lasts long term, but this is not guaranteed and the surrounding hair may keep thinning, so more procedures may be needed later.
Will transplanted hair fall out after a hair transplant? Transplanted hair usually lasts long term, although some grafts may not survive and hair around them can keep thinning. Shedding of the transplanted hairs in the first weeks is normal.
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learn Scalp Micropigmentation

scalp tattoos to mimic the appearance of light stubble

How many sessions of scalp micropigmentation will I need? Providers say most clients need 2-4 sessions of scalp micropigmentation.

learn Platelet-Rich Plasma

Concentrate of your own blood platelets, injected into the scalp

learn Microneedling

Technique that makes tiny punctures in the scalp with fine needles

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

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Community Join

5 / 982 results

community Microneedling must reach the stem cells in the upper hair shaft

82 upvotes 4 years ago

Microneedling should target depths of 0.5mm to 1.5mm for hair loss, with weekly sessions at 1mm recommended. Combining microneedling with Minoxidil is common for improved results.

community Debunking Androgenetic Theory (Hair Transplants)

in Research/Science 25 upvotes 2 years ago

The post discusses a theory that hair regrowth after transplant is due to the angiogenesis process (new blood vessels forming), not because the transplanted hair is unaffected by DHT. The responses highlight the established belief in 'donor dominance' (the importance of the hair's origin in transplantation) and skepticism about the new theory.

community Occipitalis Muscle Tension Theory

13 upvotes 7 months ago

Scalp tension from the occipitalis muscle is theorized to contribute to hair loss, but most believe DHT and genetics are the main causes. Treatments like finasteride and minoxidil are considered more effective than addressing scalp tension.

community Need some advice on Hair Transplant

4 upvotes 1 week ago

The conversation is about planning a hair transplant in Turkey, with advice on choosing clinics and doctors, focusing on factors like doctor involvement, clinic reputation, and realistic graft limits per session. Users recommend not exceeding 4000 grafts per session to avoid donor area damage and suggest considering two separate procedures for better graft survival.

community My 6 month hair transplant update from Turkey

20 upvotes 4 years ago

The user shared a positive 6-month update on their hair transplant from Turkey, where they received 6100 grafts for their hairline and mid-scalp. They are using finasteride, minoxidil, vitamins, oils, and shampoos to maintain and promote hair growth, and plan to address their crown in a future session.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas