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Did you mean Anagen Hair Ratio?

Glossary Anagen Hair Ratio

proportion of hair follicles in the active growth phase

The Anagen Hair Ratio refers to the proportion of hair follicles that are in the anagen phase, which is the active growth phase of the hair cycle. A higher anagen hair ratio indicates a greater number of hair follicles are actively growing, which is typically a sign of healthy hair growth. This ratio is often used by dermatologists and trichologists to assess hair health and diagnose conditions like alopecia.

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Research

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Melatonin Increases Anagen Hair Rate in Women With Androgenetic Alopecia or Diffuse Alopecia: Results of a Pilot Randomized Controlled Trial

research Melatonin increases anagen hair rate in women with androgenetic alopecia or diffuse alopecia: results of a pilot randomized controlled trial

78 citations , February 2004 in “British Journal of Dermatology”

This article reviews the potential impact of melatonin on hair growth, noting its benefits observed in animals, but reports no clinical results in humans to date.

research Dietary supplement increases anagen hair rate in women with telogen effluvium: results of a double-blind, placebo-controlled trial

47 citations , December 2006 in “Therapy”

This study found that a dietary supplement containing L-cystine, medicinal yeast, and pantothenic acid significantly improved hair growth in women with telogen effluvium over six months compared to placebo.

A Comparative Study on the Rate of Anagen Effluvium and Survival Rates of Scalp, Beard, and Chest Hair in Hair Restoration Procedures

research A comparative study on the rate of anagen effluvium and survival rates of scalp, beard, and chest hair in hair restoration procedure of scalp

3 citations , January 2019 in “Journal of Cutaneous and Aesthetic Surgery”

This study found that beard hair in hair restoration procedures showed the highest survival rate and lowest anagen effluvium compared to scalp and chest hair.

research Gender differences in scalp hair growth rates are maintained but reduced in pattern hair loss compared to controls

11 citations , November 2015 in “Skin Research and Technology”

This study found that individuals with patterned hair loss, both male and female, showed a slower linear hair growth rate compared to controls with hair of equal thickness.

research [Changes in telogen rate, hair density, hair diameter and rate of growth in androgenetic alopecia of the male. Simultaneously a contribution to the significance of dysplastic hair].

April 1986 in “PubMed”

This study observed that in men with androgenetic alopecia, frontal hair regions showed reduced density, diameter, and growth rate compared to occipital regions, worsening with advanced stages.

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Community Join

5 / 371 results

community Seen Alfatradiol mentioned on here a few times recently and found this study - in case anybody is interested. Translated from German.

4 upvotes 4 years ago

Alfatradiol (0.025%) is an effective and safe treatment for androgenetic alopecia in both men and women, increasing anagen hair rates with minimal side effects. Users discuss its cost-effectiveness and ease of use compared to other treatments like finasteride and RU58841, with some combining it with stemoxydine and Minoxidil.

community How long does hair actually take to recover from a shed?

in Finasteride/Dutasteride 4 upvotes 1 month ago

Hair regrowth after shedding typically takes 4-6 months, with variations depending on individual hair growth cycles. Finasteride can cause shedding, but new hair will grow back at its natural rate.

community Now that hair loss in mice is solved, can they move on to people?

709 upvotes 5 months ago

Hair loss treatments are being tested on mice, with methods like minoxidil and stem cell therapy showing promising results. However, human trials are still years away, leading to humorous frustration about mice benefiting first.

community Hair Restoration Log (Weekly 1.5 mm microneedling + QOD 0.5 mg Finasteride + Daily 50 mg 5% RU58841)

2 upvotes 5 years ago

The user experienced side effects from daily 1 mg Finasteride and switched to 0.5 mg every other day, supplemented with creatine, tongkat ali, tribulus terrestris, vitamin D3, bromantane, l-tyrosine, and caffeine. They also use weekly 1.5 mm microneedling and daily 50 mg RU58841, except on microneedling days, to manage hair loss.

community Accelerated Hair Loss from Creatine

137 upvotes 10 months ago

Creatine may cause hair loss in some individuals, especially those on finasteride, despite no scientific link. Personal experiences suggest individual sensitivity to DHT could be a factor.

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Learn

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learn Dexpanthenol

precursor of vitamin B5 with hair stimulating effects

learn Osteopontin

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

learn Melatonin

hormone commonly taken for sleep aid has some topical benefits for hair

learn Overview

learn Thymosin Beta 4

learn Caffeine

Does caffeine stimulate hair growth or only slow hair loss? Caffeine stimulates hair follicles in laboratory cultures, and one open-label trial in 210 men found a 0.2% caffeine topical non-inferior to minoxidil 5% on an anagen-ratio endpoint; there is no placebo-controlled evidence that it regrows hair, and none at all in alopecia areata or telogen effluvium.

learn Latanoprost

How does latanoprost work to make eyelashes and possibly scalp hair grow? Studies report that latanoprost, a prostaglandin analog, lengthens the anagen (growth) phase of hair follicles, which is the mechanism given for the eyelash thickening seen in glaucoma patients; on the scalp the evidence is one 16-man pilot study and animal work, so the effect there is unproven.

learn Adenosine

Adenosine: How natural is this ingredient and how does it act on the scalp? Adenosine is a naturally occurring compound that promotes hair growth by extending the anagen phase.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas