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research Single-Cell Transcriptomics Reveals the Molecular Anatomy of Sheep Hair Follicle Heterogeneity and Wool Curvature

10 citations , December 2021 in “Frontiers in cell and developmental biology”

This study used single-cell RNA sequencing to map the cellular composition of sheep hair follicles, revealing differentiation pathways and potential molecular mechanisms for wool curvature, which may inform sheep breeding.

research The Oxidative Degradation of Keratin (Wool and Bovine Hair)

11 citations , January 2006 in “Journal of the American Leather Chemists Association”

This study investigated multiple alkaline oxidative dehairing systems and found a consistent reaction mechanism for disulfide cleavage across systems, enhancing hair solubilization by enabling structural swelling and water uptake.

research The Hair Follicle Bulge: A Niche for Adult Stem Cells

19 citations , July 2011 in “Microscopy and Microanalysis”

This article reviews the role of adult stem cells in tissue homeostasis and wound repair, focusing on their regulation within the murine hair follicle's specialized niche, but it presents no new findings.

research 840 Early and late matrix progenitors form the terminally differentiated cell layers of the hair follicle

April 2017 in “Journal of Investigative Dermatology”

This study found that hair follicle matrix progenitors differentiate into various layers asynchronously, with early progenitors forming the companion layer and later progenitors generating the inner root sheath and hair shaft.

research Mediator 1 ablation induces enamel-to-hair lineage conversion through enhancer dynamics

September 2022 in “bioRxiv (Cold Spring Harbor Laboratory)”

This study found that the deletion of Med1 in dental epithelia causes a shift from dental to hair tissue development, suggesting the importance of Med1 in maintaining tissue-specific lineage.

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Community Join

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community Why do we have head hair in first place if we evolved to start losing it in some cases as soon as puberty hits

140 upvotes 11 months ago

Hair loss is influenced by genetics and sensitivity to hormones like DHT. Treatments like Minoxidil and finasteride are commonly used, and baldness persists as it doesn't affect reproductive success.

community PP405 Won't Work Long Term: Hair Follicle Damage Due to Abuse of the ISR System

67 upvotes 11 months ago

PP405 may damage hair follicles if used long-term, suggesting cycling might be necessary. Combining it with finasteride could help maintain hair growth.

community [13-Year Hair Loss Journey – Reached Norwood 7, Trying Again in 2025 (Male, 32, Vietnam)]

245 upvotes 11 months ago

A 32-year-old man from Vietnam, at Norwood 7 hair loss, is using Minoxidil, Finasteride, rosemary oil, NMN, and CoQ10 to regrow hair. Despite minor improvements, alternatives like hair systems or accepting baldness are suggested due to advanced hair loss.

community My Theory Of Androgenic Alopecia

16 upvotes 9 months ago

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

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.

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Learn

6 / 801 results

learn Osteopontin

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

learn Stem Cell Factor

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 Adenosine

nucleoside used for hair regrowth stimulant properties

learn Valproic acid

an anticonvulsant repurposed for hair loss via histone inhibition

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Clinics

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