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GlossaryFollicular Unit

naturally occurring group of one to four hair follicles

A follicular unit is a naturally occurring group of one to four hair follicles that emerge from the scalp, along with associated sebaceous (oil) glands, nerves, and a small muscle called the arrector pili. This unit is the basic building block used in hair transplantation procedures, as it allows for the most natural-looking results by mimicking the way hair grows naturally.

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Research

5 / 1000+ results

Single Follicular Unit Transplantation Reconstructs Arrector Pili Muscle and Nerve Connections and Restores Functional Hair Follicle Piloerection

research Single follicular unit transplantation reconstructs arrector pili muscle and nerve connections and restores functional hair follicle piloerection

13 citations , March 2012 in “The Journal of Dermatology”

Hair transplant surgery can rebuild muscle and nerve connections, allowing transplanted hairs to stand up like normal hairs.

research Single–Follicular-Unit Hair Transplantation to Correct Cleft Lip Moustache Alopecia

11 citations , September 2001 in “The Cleft Palate Craniofacial Journal”

Hair transplant surgery successfully restored a boy's moustache hair on a cleft lip scar, with natural-looking results and patient satisfaction.

Old Friend or New Ally: A Comparison of Follicular Unit Transplantation and Follicular Unit Excision Methods in Hair Transplantation

research Old Friend or New Ally: A Comparison of Follicular Unit Transplantation and Follicular Unit Excision Methods in Hair Transplantation

9 citations , March 2020 in “Dermatologic Surgery”

Both Follicular Unit Transplantation (FUT) and Follicular Unit Excision (FUE) are effective hair transplant methods; the best choice depends on the patient's needs and the surgeon's preference.

The Effect of One Session Low Level Laser Therapy on Extracted Follicular Units in Hair Transplantation

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”

One session of Low Level Laser Therapy before hair transplantation doesn't significantly improve hair growth.

research Single–Follicular-Unit Hair Transplantation to Correct Cleft Lip Moustache Alopecia

6 citations , September 2001 in “The Cleft Palate Craniofacial Journal”

Hair transplant surgery successfully restored a boy's moustache hair on a cleft lip scar, with natural-looking results and patient satisfaction.

View more "hair follicular units" in research →

Community Join

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community Pelage PP405: New Hair Growth from Inactive Follicular Units - Phase 2a results at AAD 2026

in Research/Science 1067 upvotes 3 months ago

PP405, a topical treatment, shows promise for hair growth by activating inactive follicles, with 66% of participants experiencing positive results. The treatment is well-tolerated and may proceed directly to Phase 3 trials, offering a potential alternative to minoxidil and finasteride.

community What is the deal with "longitudinal partial follicular unit transplantation"

in Transplants 5 upvotes 6 years ago

Longitudinal partial follicular unit transplantation involves extracting part of the donor follicular unit, allowing the donor area to be overharvested without noticeable hair loss. The conversation questions if this method is practiced in clinics or if it's theoretical, and whether it relates to hair cloning or multiplication.

community Verteporfin day 84 update - donor hair regeneration human trials

in Research/Science 32 upvotes 3 years ago

A human trial involving verteporfin for hair regeneration, with the results showing some regrowth of 1-2 hairs in an area where a follicular unit was extracted. The conversation also suggested that future studies should involve higher doses and more frequent injections.

community Progress with 6 Years fin and a FUT (2017 vs 2023)

in Is this regrowth? 210 upvotes 3 years ago

The post discusses a user's six-year progress with finasteride and a Follicular Unit Transplant (FUT) for hair loss. The user shared before and after photos in reverse order, leading to confusion, but overall, the community responded positively to the user's hair regrowth.

community How is verteporfin doing in trials?

in Chat 9 upvotes 2 years ago

The conversation is about the progress of verteporfin in hair loss trials, with users expressing curiosity about its effectiveness and updates. Specific treatments mentioned include FUE (Follicular Unit Extraction) combined with verteporfin, with one reported case of donor area regrowth after a year, and three patients being monitored post-treatment by Dr. Bloxham with monthly updates on YouTube.

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learn Overview

learn Thymosin Beta 4

learn Epidermal Growth Factor

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn GHK-Cu

a copper peptide showing promise in both regrowth and reversing gray hair

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Related Terms

Research

research Single follicular unit transplantation reconstructs arrector pili muscle and nerve connections and restores functional hair follicle piloerection

research Single–Follicular-Unit Hair Transplantation to Correct Cleft Lip Moustache Alopecia

research Old Friend or New Ally: A Comparison of Follicular Unit Transplantation and Follicular Unit Excision Methods in Hair Transplantation

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

research Single–Follicular-Unit Hair Transplantation to Correct Cleft Lip Moustache Alopecia

Community Join

community Pelage PP405: New Hair Growth from Inactive Follicular Units - Phase 2a results at AAD 2026

community What is the deal with "longitudinal partial follicular unit transplantation"

community Verteporfin day 84 update - donor hair regeneration human trials

community Progress with 6 Years fin and a FUT (2017 vs 2023)

community How is verteporfin doing in trials?

Learn

learn Overview

learn Thymosin Beta 4

learn Epidermal Growth Factor

learn Hair Multiplication

learn GHK-Cu

Experts

Dr. Zen Hair

Hairo Fallas

Clinics