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Glossary Hair Follicle Cells

specialized cells responsible for hair growth and regeneration

Hair follicle cells, also known as follicular cells, are specialized cells located within the hair follicle, the skin structure responsible for hair growth. These cells play a crucial role in the hair growth cycle, including the phases of growth (anagen), regression (catagen), and rest (telogen). They are involved in the production of keratin, the protein that makes up hair, and are essential for the regeneration and repair of hair.

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Research

5 / 1000+ results

research Modelling Human Hair Follicles—Lessons from Animal Models and Beyond

5 citations , April 2024 in “Biology”

This review explores the current understanding of hair follicle development and regeneration, emphasizing the molecular pathways involved and the potential for bioengineering hair follicles in vitro to advance hair regeneration strategies.

research In vitro hair follicle growth model for drug testing

3 citations , March 2023 in “Scientific Reports”

This study found that organoid cultures of human epithelial and mesenchymal cells can produce hair peg-like structures, and their growth is enhanced by minoxidil, suggesting potential for hair drug screening.

research Review of Hair Follicle Dermal Papilla cells as in vitro screening model for hair growth

76 citations , August 2018 in “International Journal of Cosmetic Science”

This review discusses the use of Dermal Papilla cells as in vitro models for studying hair growth modulators, emphasizing their role in aiding the development of new hair treatments, but reports no new clinical results.

research A simple and rapid model for hair-follicle regeneration in the nude mouse

8 citations , January 2015 in “Clinical and Experimental Dermatology”

This study found that an improved flap model in nude mice significantly reduces the time needed for hair induction compared to the traditional method, likely due to enhanced blood supply at the transplantation sites.

research Human hair growth in vitro: a model for the study of hair follicle biology

133 citations , July 1994 in “Journal of Dermatological Science”

In this study, the researchers developed an in vitro model that maintains human hair follicles to grow at in vivo rates and observed that factors like EGF and IGF-I influence hair follicle growth and catagen entry.

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Community Join

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community Do hair follicles dies or are dormant ?

in Finasteride/Dutasteride 92 upvotes 1 year ago

Hair follicles can be dormant and potentially revived with treatments like finasteride and minoxidil, but irreversible loss occurs if certain structures are destroyed. Early intervention is more effective, and additional methods like microneedling may help.

community Pilose antler extracts promotes hair growth in androgenetic alopecia mice by activating hair follicle stem cells via the AKT and Wnt pathways

11 upvotes 2 years ago

Pilose antler extracts may promote hair growth in androgenetic alopecia by activating hair follicle stem cells through the AKT and Wnt pathways. However, results in mice may not directly apply to humans due to differences in genetic and biochemical conditions.

community "Hair Follicle Stem Cells are quiescent 99% of the time and permanently reside in the hair follicle"

in Research/Science 1391 upvotes 1 year ago

Hair follicles are mostly dormant but can be reactivated with treatments like minoxidil, finasteride, and microneedling. A new drug, PP405, shows promise for hair regrowth but may not be available until 2027-2028.

community How far away are we from scalp/hair follicle cloning for an essentially unlimited transplant supply? And would prior transplants affect eligibility?

7 upvotes 6 months ago

Hair/scalp cloning for unlimited transplants is likely a decade away, with prior transplants not significantly affecting future options. Advances in AI and research in wound-induced hair neogenesis are promising, but infrastructure and technology constraints remain challenges.

community Baldness Breakthrough: microRNA Stimulates Hair Growth in Aging Follicles

316 upvotes 3 years ago

miR-205, a tiny RNA, can stimulate hair growth by softening aging hair follicle stem cells in mice. Future tests aim to see if this can work in humans.

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Learn

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learn Cetirizine

How does cetirizine reduce inflammation linked to hair loss? Cetirizine is proposed to lower prostaglandin D2 and raise prostaglandin E2 around hair follicles; three small trials of a compounded 1% topical report modest increases in hair density and shaft thickness, with minoxidil doing better head-to-head. Topical cetirizine is off-label and unapproved for hair loss, and the evidence is too thin to call it effective or safe.

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Exosomes

Microscopic delivery system that sends growth-promoting signals to hair follicles

learn Valproic acid

an anticonvulsant repurposed for hair loss via histone inhibition

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Rapamycin

mTOR regulator and immunosuppressant used more recently for anti-aging and hair regrowth

learn Niacinamide

How does Niacinamide support the hair follicle’s nutrition? Niacinamide nourishes hair follicles by boosting energy production and supporting antioxidant defenses.

learn oleic acid

How does Oleic Acid support hair follicle strength and growth? Oleic acid strengthens hair follicles by enhancing hydration and reducing inflammation.

learn zinc PCA

Why is zinc important for preventing hair loss and supporting hair follicle function? Zinc is crucial for hair follicle health, supporting growth and repair processes.

learn Scalp Micropigmentation

Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas