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research What controls hair follicle cycling?

50 citations , August 1999 in “Experimental dermatology”

This review discusses the need for more research on how the chronobiological control systems regulate hair follicle cycling and reports no new results.

research MicroRNA-214 controls skin and hair follicle development by modulating the activity of the Wnt pathway

103 citations , November 2014 in “Journal of Cell Biology”

This study found that overexpression of miR-214 in keratinocytes inhibits hair follicle development and cycling by targeting β-catenin in the Wnt signaling pathway.

research H2AK119ub dynamics control hair follicle stem cell quiescence

2 citations , December 2025 in “Nature Communications”

This study found that the repressive histone mark H2AK119ub links inhibitory FGF signals with the quiescent state in hair follicle stem cells, revealing a signaling-epigenetic axis crucial for maintaining stem cell quiescence and tissue homeostasis.

research 568 Autophagy Controls Epidermal Tumour Formation and Hair Follicle Stem Cell Activation

November 2022 in “Journal of Investigative Dermatology”

This study found that removing autophagy in keratinocytes led to increased skin inflammation, higher risk of skin tumors, and early hair follicle activation in mice.

research Epithelial growth control by neurotrophins: leads and lessons from the hair follicle

99 citations , January 2004 in “Progress in brain research”

This review examines the role of neurotrophins in hair follicle development and remodeling, highlighting potential therapeutic applications for hair growth disorders, but it reports no new empirical findings.

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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 Hair follicle cloning is already possible

in Chat 38 upvotes 1 year ago

Hair follicle cloning is claimed to be possible but not widely available due to potential safety issues, such as cancer risks. Current treatments like finasteride and dutasteride are not effective for everyone, and there is frustration over limited access to these medications.

community Another mechanism to hair loss that isn’t talked about. Heavy metals and follicle waste.

16 upvotes 2 months ago

Hair follicles can store waste, potentially leading to hair loss, and treatments like DHT blockers and Minoxidil are suggested. Scalp inflammation and sensitivity to DHT also contribute to hair loss, and addressing these factors with a clinician is recommended.

community if hair follicle miniaturization happens slowly and gradually over a few hair cycles then wouldn't that mean that to regain maximum or top thickness from treatment you would at least need 5-10 years?

in Research/Science 53 upvotes 10 months ago

Hair regrowth from treatments like finasteride, dutasteride, and minoxidil can take several years, with most visible results appearing within 1-2 years and potential improvements continuing up to 10 years. Consistency and patience are crucial for achieving maximum hair thickness, as hair miniaturization and regrowth are gradual processes.

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.

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9 / 61 results

learn Exosomes

Can an exosome treatment revive hair follicles that have stopped producing hair? Unproven. No controlled human study shows that exosomes revive dormant follicles, none can revive scarred ones, and no exosome product is FDA-approved.
Do exosomes work for people with mild hair loss or only in advanced cases? There is no approved exosome treatment for hair loss and no controlled trial in either mild or advanced cases; the argument that early thinning would respond better is based on follicle biology, not on results.

learn Fluridil

Can daily Fluridil application stop hair follicle miniaturization? The single published fluridil trial (43 men; placebo-controlled for 3 months, then all on fluridil to 9 months) reported more hairs in the growth phase, but it never measured follicle diameter and has not been replicated — so whether daily use stops miniaturization is unproven, and community users describe stabilization rather than regrowth.

learn Salicylic acid

Does salicylic acid help clean and unclog hair follicles, and does that help hair growth? Salicylic acid loosens dead skin and oil on the scalp and is used in dandruff shampoos. No controlled study has shown that it helps hair grow.

learn Caffeine

Does caffeine stimulate hair growth or only slow hair loss? Caffeine stimulates hair follicles in laboratory cultures, and one open-label, manufacturer-funded trial in 210 men found a 0.2% caffeine topical non-inferior to minoxidil 5% on an anagen-ratio endpoint. A 2025 systematic review found only a few small controlled trials, mostly rated low or very low quality, and none in alopecia areata.