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research Human hair morphology: a scanning electron microscopy study on a male Caucasoid and a computerized classification of regional differences.

17 citations , June 1990 in “PubMed”

This study examined the morphological variations of terminal hair from different body regions of a Caucasian male, finding notable differences in diameter and features like "steak-boning" in specific hair types.

research Quantifying the effects of repeated dyeing: morphological, mechanical, and chemical changes in human hair fibers

September 2024 in “Heliyon”

In this study, researchers observed that even a single session of hair dyeing can damage hair fibers, with significant worsening of mechanical properties and protein composition after three or more consecutive treatments, emphasizing the need to consider the cumulative impacts of dyeing on hair health.

research Morphological analysis of in vitro human hair growth

13 citations , January 1993 in “Archives of dermatological research”

In this study, human hair follicles were maintained in a serum-free medium for up to 12 days, revealing detailed histological and ultrastructural changes that suggest possible catagen-like involution mechanisms.

research Human hair form. Morphology revealed by light and scanning electron microscopy and computer aided three-dimensional reconstruction.

27 citations , September 1988 in “PubMed”

In this study, researchers used three-dimensional reconstruction to show that the shape of the hair follicle determines the hair's form, with variations observed among different racial groups.

research ARCHAEOLOGICAL AND CONTEMPORARY HUMAN HAIR COMPOSITION AND MORPHOLOGY

21 citations , December 2011 in “Chungara”

This study shows that environmental contamination affects mummy hair, suggesting that using it to assess ancient people's health or nutrition should be approached cautiously.

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Community Join

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community This is the best time in human history to be fighting hair loss

195 upvotes 4 years ago

This conversation discusses the advancements in treatments for hair loss, including finasteride, dutasteride, minoxidil and new promising treatments such as pyrilutamide and verteporfin. Other treatments discussed were taking minoxidil orally, tretinoin to turn non-responders into responders and microneedling to further boost growth.

community The Real Reason For Hair Loss?

8 months ago

Hair loss is linked to scalp fibrosis and tension, which result from chronic mechanical stress and androgenic signaling. Treatments include blocking androgens with finasteride, promoting hair growth with topical minoxidil, and improving scalp mobility through exercises.

community A Different Take on Curing MBP

16 upvotes 7 years ago

Addressing hair loss by focusing on posture, blood flow, and craniofacial development. Methods include improving posture, cardiovascular activity, scalp massages, healthy diet, meditation, using minoxidil, and addressing craniofacial issues.

community Fresh off the press: Dutasteride may cause chronic infertility

in Research/Science 643 upvotes 1 year ago

Dutasteride may cause chronic infertility by reducing semen volume and motility, with concerns about irreversible prostate fibrosis. Users consider switching to finasteride or using treatments like minoxidil and microneedling, weighing hair preservation against fertility.

community Everything you ever wanted to know about Pelage Pharma's PP405: how it works and what to expect

126 upvotes 2 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

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learn Thymosin Beta 4

learn Vitamin B1

Thinning hair over time? It might not just be genetics: lack of B1 and B2 could be silently working against you. There is no verified human trial showing that B1 or B2 deficiency causes thinning hair or that correcting it regrows hair; a 2019 review concludes the role of micronutrients in hair loss is real but unclear and still needs controlled trials.

learn RU58841

Will I lose my hair if I stop using RU58841? (Spoiler: I might.) There is no published human trial of stopping RU58841; community members commonly report shedding within weeks to months, and androgen biology suggests miniaturization would resume once the topical anti-androgen is withdrawn.

learn Castor oil

Does castor oil make hair grow or is it just a myth? There is no published human trial showing castor oil grows hair. It can make hair look and feel better by reducing breakage and adding shine, which is easily mistaken for growth, and it is not approved anywhere as a hair loss treatment.

learn Redensyl

Does Redensyl prevent hair loss or only help when there's already visible hair loss? The only human data on Redensyl is a small, unpublished manufacturer study in men who already had androgenetic alopecia; there is no evidence in people without visible hair loss, so nothing supports using it to prevent hair loss before it starts.

learn Ecklonia Cava

Can Ecklonia Cava be used as a preventive treatment for early signs of hair thinning? No human trial has tested Ecklonia cava for hair loss, so it cannot be called preventive; the evidence is mouse studies and cell cultures suggesting antioxidant activity and 5-alpha-reductase inhibition in the lab.

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Valproic acid

an anticonvulsant repurposed for hair loss via histone inhibition

learn KY19382

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

learn Osteopontin

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

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