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Did you mean Secondary Hair Follicles?

Glossary Secondary Hair Follicles

smaller hair-producing structures that develop alongside primary follicles

Secondary hair follicles are smaller hair-producing structures that develop alongside primary hair follicles, typically in mammals with dense fur or wool. They produce finer, shorter hairs that contribute to the overall thickness and insulation properties of the animal's coat. These follicles are crucial for maintaining the density and texture of the fur, especially in species adapted to cold environments.

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Research

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research 1326 Hes1 regulates anagen initiation and hair follicle regeneration through modulation of hedgehog signaling

April 2018 in “Journal of Investigative Dermatology”

This study found that the absence of Hes1 in hair follicles delays secondary hair germ activation and shortens the anagen phase, impacting HFSC self-renewal and long-term hair regeneration.

research Comparative Transcriptome Analysis of Fetal Skin Reveals Key Genes Related to Hair Follicle Morphogenesis in Cashmere Goats

127 citations , March 2016 in “PLoS ONE”

This study found that transcriptome profiling of cashmere goat skin revealed key genes and pathways involved in hair follicle initiation, differentiation, and maturation, which are critical for improving fleece production.

research Expression profile analysis of microRNAs during hair follicle development in the sheep foetus

9 citations , April 2019 in “Bioscience, biotechnology, and biochemistry”

This research identified key miRNAs involved in sheep fetal hair follicle development, highlighting the prolactin signaling pathway and platelet activation as critical processes in secondary follicle initiation.

research TMT-based quantitative proteomics reveals the genetic mechanisms of secondary hair follicle development in fine-wool sheep

2 citations , February 2025 in “PLoS ONE”

This study used TMT-based quantitative proteomics to analyze the development of secondary hair follicles in fetal sheep, revealing increased follicle density and key proteins involved, such as COL1A1 and THBS4, indicating their potential role in wool quality traits.

research Dermal EZH2 orchestrates dermal differentiation and epidermal proliferation during murine skin development

6 citations , June 2021 in “Developmental biology”

This study found that dermal EZH2 plays a crucial role in controlling fibroblast differentiation by regulating Wnt/β-catenin and retinoic acid signaling during skin development.

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Learn

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learn Thymosin Beta 4

learn Hair Transplant

Can hair be taken from other parts of the body for hair transplantation? Body hair can be used for transplantation but is generally a secondary option.
What is a hair transplant? A hair transplant is a surgical procedure that relocates hair follicles to areas of thinning.
What are the risks and side effects of FUE hair transplants? Providers describe most FUE side effects, such as swelling, redness, numbness and shock loss, as temporary, but FUE is surgery and the same sources report pain, infection, folliculitis and small permanent donor-site scars. Longer-lasting problems, including visible donor-area thinning or poor graft growth, are possible and are not covered by this provider survey.
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learn KY19382

compound that activates Wnt/β-catenin to promote hair regrowth and create new hair follicles

learn Follistatin

glycoprotein that inhibits TGF-β and promotes hair growth by antagonizing activin

learn Stem Cell Factor

How does stem cell factor help activate dormant hair follicles? Stem cell factor activates dormant hair follicles by signaling through the c-Kit receptor.

learn sh-Polypeptide-7

learn Neem Oil

natural substance from Neem tree with medicinal and pesticidal properties

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Community Join

5 / 221 results

community Secondary shedding, 6 months into oral minoxidil/finasteride 3mg chewables

55 upvotes 4 months ago

The user experienced significant hair regrowth and increased density after six months of using oral minoxidil and finasteride chewables, despite going through a secondary shedding phase. The only side effect mentioned was restlessness, and the user feels healthier overall.

community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community It’s all about the stem cells…

53 upvotes 4 years ago

Hair loss is linked to the loss of stem cells in hair follicles, and potential treatments include gene editing and microneedling. Discussions also mention using Minoxidil, finasteride, and dermarolling to improve hair growth.

community Pelage, PP405, is creating a database for potential new trial volunteers

148 upvotes 11 months ago

PP405 is a new hair loss treatment targeting dormant hair follicles, with ongoing trials. Some users consider stopping finasteride and minoxidil to join trials, while others doubt its effectiveness.

community Haircafe slams pp405 presentation. Are results really that bad?

64 upvotes 5 months ago

PP405 shows promise in activating dormant hair follicles and increasing hair counts but lacks detailed efficacy data compared to minoxidil and finasteride. Opinions are mixed, with some optimism and skepticism about its effectiveness.

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Clinics

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Experts

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Unscored
SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas