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Glossary Hair Germ Cells

specialized cells initiating new hair follicle growth

Hair germ cells are specialized cells found in the hair follicle that play a crucial role in the initiation of new hair growth. They are derived from stem cells and are responsible for the early stages of hair follicle development and regeneration, making them essential for maintaining healthy hair cycles.

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Research

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research 1017 The prostaglandin F2α analog bimatoprost activates secondary hair germ cells to promote hair growth through two distinct signaling pathways

July 2026 in “Journal of Investigative Dermatology”

This study uncovered that bimatoprost, a prostaglandin analog, promotes hair growth by activating hair follicle progenitor cells through two pathways: the PTGFR-MAPK signaling axis and an unexpected IGF1R-PCAD-AKT signaling axis, suggesting new potential targets for treating hair disorders.

research Impact of adipose-derived stem cells on engineering hair follicle germ-like tissue grafts for hair regenerative medicine

11 citations , March 2021 in “Journal of Bioscience and Bioengineering”

This study demonstrated that adding human adipose-derived stem cells to hair follicle germ-like aggregates significantly improved hair shaft generation in transplanted nude mice, suggesting a promising strategy for hair regenerative medicine.

research Ber‐EP4 antigen is a marker for a cell population related to the secondary hair germ

21 citations , June 2004 in “Experimental Dermatology”

This study found that Ber-EP4 immunoreactivity is present in specific areas of hair follicles across different stages of the hair cycle, particularly in the secondary hair germ, but not in mature anagen follicles.

research Stem cell dynamics in the hair follicle niche

135 citations , December 2013 in “Seminars in Cell & Developmental Biology”

This review examines the literature on the molecular and cellular makeup of the hair follicle niche and how it influences stem cell behavior during hair regeneration, but does not provide new experimental results.

research Stem cell plasticity enables hair regeneration following Lgr5+ cell loss

56 citations , May 2017 in “Nature Cell Biology”

Hair can regrow after certain stem cells are lost because other stem cells can take over their role.

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Community Join

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community The new growth in hair loss research: With increasing evidence of its impact on mental health, scientists are pushing forward with breakthroughs on balding. Later this year, scientists will launch one of the first ever clinical trials with hair follicles grown entirely from stem cells.

324 upvotes 7 years ago

Hair loss impacts mental health, with treatments like Minoxidil, finasteride, and stem cell transplants discussed. There is hope for future breakthroughs, but current treatments are limited, and awareness is lacking.

community Prolactin the Cause of Hair Loss? ABS-201 the Cure?

29 upvotes 2 months ago

Prolactin may contribute to hair loss, but targeting its receptor won't cure androgenetic alopecia. ABS-201 could be a useful alternative or adjuvant therapy, similar to JAK inhibitors, but not more effective than HMI-115.

community Update and new paper from Dr tsuji

26 upvotes 7 years ago

Hair follicle regenerative therapy is being developed, with clinical trials planned in Japan, potentially allowing for hair cloning and eliminating the need for treatments like finasteride. If successful, the treatment could be available in Japan by 2025, but widespread access and affordability may take longer.

community Everything you ever wanted to know about Pelage Pharma's PP405: how it works and what to expect

126 upvotes 3 months ago

PP405 may encourage earlier hair growth and slightly increase visible hair count but does not reverse hair follicle miniaturization in male pattern baldness. It does not address damage to the dermal papilla or broken Wnt signaling.

community Nice product I discovered, thought I would share.

in Treatment 456 upvotes 1 year ago

A product that makes hair look thicker and healthier without promoting regrowth. Discussions include treatments like minoxidil, finasteride, red light therapy, and a serum with caffeine and peptides, with mixed effectiveness opinions.

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Clinics

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Hair Loss Treatments
Gem Skin, Hair & Laser CentreMadurai, Tamil Nadu · IN

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