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The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research The Ludwig pattern of androgenetic alopecia is due to a hierarchy of androgen sensitivity within follicular units that leads to selective miniaturization and a reduction in the number of terminal hairs per follicular unit

47 citations , September 2008 in “British Journal of Dermatology”

This study found that women with androgenetic alopecia experience diffuse hair loss due to a decrease in terminal hairs and an increase in vellus hairs per follicular unit.

research Effect ofCitrullus colocynthisSchrad fruits on testosterone-induced alopecia

31 citations , September 2009 in “Natural Product Research”

In this study, petroleum ether extract of Citrullus colocynthis fruit effectively promoted hair growth in a mouse model of androgen-induced alopecia, showing comparable results to the standard treatment, finasteride.

research SnapshotDx Quiz: August 2019

July 2019 in “Journal of Investigative Dermatology”

This article previews a Journal of Investigative Dermatology quiz on diagnosing male androgenetic alopecia and offers no new research results.

research Effect ofCuscuta reflexaRoxb on androgen-induced alopecia

63 citations , August 2008 in “Journal of Cosmetic Dermatology”

The researchers reported that the petroleum ether extract of Cuscuta reflexa may promote hair growth in testosterone-induced alopecia in mice by inhibiting the enzyme 5α-reductase.

Androgen Receptor-Mediated Paracrine Signaling Induces Regression of Blood Vessels in the Dermal Papilla in Androgenetic Alopecia

research Androgen Receptor–Mediated Paracrine Signaling Induces Regression of Blood Vessels in the Dermal Papilla in Androgenetic Alopecia

6 citations , January 2022 in “Journal of Investigative Dermatology”

This study found that androgen receptor signaling is linked to blood vessel regression in the dermal papilla of balding scalp, contributing to hair follicle miniaturization in androgenetic alopecia.

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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.

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 Testosterone in Reference Range Doesn't Cause Hair Loss

52 upvotes 2 years ago

Testosterone within the normal range does not significantly contribute to male pattern baldness (MPB); DHT is the main factor that can be controlled. Genetics play a crucial role in hair loss, and treatments like finasteride and dutasteride, which block DHT, can help despite potentially raising testosterone levels.

community Interesting article links major MPB theories to western diet (and life-style)

in Research/Science 58 upvotes 1 year ago

Poor diet and lifestyle contribute to male pattern baldness. Treatments like Minoxidil, dietary changes, and lifestyle adjustments may help slow hair loss.

community Most promising cures for baldness as of May 2026

70 upvotes 4 months ago

PP405 is the most promising future treatment for hair loss, aiming to reactivate dormant hair follicles. Clascoterone 5% is the most promising near-term drug, while current strategies include using finasteride or dutasteride to stabilize hair loss and minoxidil to stimulate growth.

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learn Overview

learn Finasteride

Does hair strand thickness decrease in men with androgenic alopecia? Can finasteride help restore it? Androgenic alopecia thins hair strands by miniaturizing follicles. The pivotal finasteride trials (1,553 men, 1 mg/day, two years) report increased hair counts and improved assessed appearance, but they measured density, not the diameter of individual strands, so the effect on thickness itself is not established.

learn Fluridil

Can daily Fluridil application stop hair follicle miniaturization? The single published fluridil trial (43 men, 9 months, double-blind and placebo-controlled) 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 Follistatin

How does follistatin compare to finasteride or dutasteride for treating androgenic alopecia? Finasteride and dutasteride are prescription drugs with large controlled trials showing they lower DHT and slow androgenic hair loss, at the cost of documented hormonal side effects; follistatin targets a different, regenerative pathway but has only one small phase 1 human trial behind it, so it is experimental with unknown safety rather than a comparable alternative.

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