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research In Vitro Differences Between Keratinocyte Stem Cells and Transit-Amplifying Cells of the Human Hair Follicle

52 citations , October 2005 in “Journal of Investigative Dermatology”

This study found that human hair follicle stem cells formed more colonies and adhered more rapidly, while transit-amplifying cells showed significantly greater mobility.

research 773 Generation of human hair follicle organoids in vitro and ex vivo by co-culture of primary human hair matrix keratinocytes and dermal papilla fibroblasts

June 2020 in “Journal of Investigative Dermatology”

This study observed that human primary adult hair matrix keratinocytes may have the potential to generate hair follicle organoids, suggesting possible applications in hair follicle neogenesis and preclinical hair growth agent screening.

research Establishment of keratinocyte cell lines from human hair follicles

16 citations , September 2018 in “Scientific reports”

This study demonstrates that keratinocyte cell lines derived from cultured hair follicles can fully differentiate in organotypic skin models, offering a minimally invasive alternative to obtaining keratinocytes for research.

research Possible Cellular Communication with Human Follicle Dermal Papilla Cells via Secretions from Human Hair Follicle Keratinocytes

January 2022 in “Journal of St. Marianna University”

This study investigated how secretions from cultured human hair follicle-derived keratinocytes affect gene expression in human follicle dermal papilla cells to understand their signaling interactions.

research LB788 Development of a novel three-dimensional human epidermal model from plucked hair follicle-derived keratinocytes

July 2016 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study concluded that a new model of reconstructed human epidermis using keratinocytes from plucked hair follicles offers a less-invasive alternative to conventional skin-derived models for skin research.

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Community Join

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community Weed/THC effects on hair growth/hair loss, and vitality of organ-culture human follicle studies (research review)

4 upvotes 1 year ago

Cannabis and THC may have mixed effects on hair, with some studies suggesting potential negative impacts on hair growth in isolated hair follicles, but these results are hard to apply to living humans. Treatments like minoxidil and finasteride are commonly used for hair loss, and the effects of cannabis might be neutral or vary based on individual factors.

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 Minoxidil Response Bottlenecks: Why Sulfation and Transport Matter (And Where Tretinoin Fits In)

in Research 461 upvotes 1 year ago

Minoxidil's effectiveness is limited by the need for sulfation and proper transport to hair follicles, with tretinoin potentially enhancing its effects by promoting enzyme activity and keratinocyte differentiation. Tretinoin may improve minoxidil's response by boosting the expression of necessary enzymes and transporters.

community Dht kills hair, but no one says why?

in Finasteride/Dutasteride 40 upvotes 1 year ago

DHT affects hair follicles, contributing to hair loss, but the exact mechanism is unclear. Treatments like finasteride and minoxidil are used to manage hair loss, though they may have side effects and varying effectiveness.

community Tazarotene shows strong standalone hair regrowth potential, not just a Minoxidil enhancer. Backed by VEGF, HF regeneration, and angiogenesis pathways. Here’s why.

135 upvotes 1 year ago

Tazarotene shows potential as a standalone treatment for hair regrowth by stimulating new hair follicle formation and promoting angiogenesis, similar to microneedling effects. It can be used topically without minoxidil, but users should start with a low concentration to avoid irritation.

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Learn

10 / 34 results

learn Thymosin Beta 4

learn Vitamin D

Vitamin made in the skin from sunlight, also taken as a supplement

learn Melatonin

Hormone that regulates sleep, sold as a supplement

learn Ecklonia Cava

Can Ecklonia Cava reactivate dormant hair follicles and support new growth? No human study has tested whether Ecklonia cava reactivates hair follicles; the evidence comes from cultured cells, cultured follicles and mice.

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.

learn sh-Polypeptide-7

Does sh-Polypeptide-7 stimulate hair follicles or reduce scalp inflammation? sh-Polypeptide-7 is the INCI name for a lab-made form of human growth hormone (somatotropin) — not EGF, which is sh-Oligopeptide-1. Growth hormone and IGF-1 signalling is documented in hair follicle biology, but there is no published human trial of sh-Polypeptide-7 applied to the scalp for hair growth or scalp inflammation.

learn oleic acid

How does Oleic Acid support hair follicle strength and growth? Lab and animal studies suggest oleic acid may help the scalp barrier and hair shaft. No human trial shows that it strengthens follicles or slows hair loss.

learn Redensyl

Does Redensyl regenerate follicles or only strengthen existing hair? No independent study has shown that Redensyl regenerates follicles or strengthens hair; the only human data are a small, unpublished manufacturer study.

learn SCUBE3

Signalling protein made in the hair follicle

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

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