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research Correlation of proteolytic activities of organ cultured intact mouse skin with defined hair cycle stages

28 citations , June 1994 in “Journal of Dermatological Science”

This study found that proteolytic activities in murine skin vary with hair cycle stages, with significant collagenase activity during the early anagen phase.

research Alkaline Phosphatase Reaction in Hair Follicles of Male Beagle Dogs during Hair Cycle Stages*

2 citations , September 1978 in “Anatomia Histologia Embryologia”

This study observed that alkaline phosphatase activity in dog hair follicles varied with hair cycle stages, displaying weak to negative reactions in the anagen stage, positive reactions in catagen, and strong positivity in telogen.

The Effects of Finasteride on Hair Growth, Hair Cycle Stage, and Serum Testosterone and Dihydrotestosterone in Adult Male and Female Stumptail Macaques

research The effects of finasteride (Proscar) on hair growth, hair cycle stage, and serum testosterone and dihydrotestosterone in adult male and female stumptail macaques (Macaca arctoides).

11 citations , October 1994 in “The Journal of Clinical Endocrinology and Metabolism”

Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.

research Resting no more: re‐defining telogen, the maintenance stage of the hair growth cycle

120 citations , November 2014 in “Biological Reviews”

This article explores the dynamic and energy-efficient nature of telogen hair follicles, challenging the notion of dormancy, and highlights their potential in advancing treatments for hair growth disorders.

research Foot shock stress prolongs the telogen stage of the spontaneous hair cycle in a non‐depilated mouse model

31 citations , April 2007 in “Experimental Dermatology”

This study found that foot shock stress prolonged the telogen stage and delayed anagen induction in the hair cycle of non-depilated mice, potentially through stress-induced actions of substance P.

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Learn

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learn Hair Transplant

What happens after a hair transplant? Expect mild swelling and redness, with new hair growth starting in 3 to 6 months.
When will I see new hair growth after a hair transplant? New hair growth usually starts 2-4 months after a hair transplant.

learn Osteopontin

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

learn Rapamycin

mTOR regulator and immunosuppressant used more recently for anti-aging and hair regrowth

Is rapamycin safe for long-term use on the scalp, or should it be used in cycles? There is no published human trial of topical rapamycin on the scalp, so nobody knows whether long-term use is safe; the idea of cycling it comes from community practice and theory, not from any study or guideline, and rapamycin for hair loss is an off-label use of a prescription immunosuppressant.

learn Overview

learn HMI-115

much-hyped research compound targeting prolactin receptor in scalp

learn Sulforaphane

compound from cruciferous vegetables has some mild effects on DHT

learn Cyproterone

How long does it take for cyproterone to work on hair loss? There is no reliable published figure for how fast cyproterone works on hair loss: the hair cycle means nothing shows for months, the one randomised trial assessed women at twelve months, and community reports range from about six months to two years — with some people seeing no change at all.

learn horsetail extract

How long should you use horsetail extract before noticing stronger or thicker hair? No published trial has tested horsetail extract for hair thinning, so no evidence-based timeline exists; the hair cycle means any supplement needs at least three months, and more realistically five to six, before a change could be visible at all.

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Community Join

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community Understanding the Hair Transplant Timeline — A Medical Perspective

in Transplants 5 months ago

Hair transplantation involves a detailed consultation, preparation, and a long-term recovery process with stages like initial shedding and gradual new hair growth over months. Setting realistic expectations is crucial for patient satisfaction.

community Transition from Baby Hair to Normal Hair?

in Finasteride/Dutasteride 33 upvotes 2 years ago

The conversation discusses the slow transition from baby hair to normal hair while using finasteride and transitioning to dutasteride, with progress except for the crown area. It's mentioned that hair thickening can take years, with each growth cycle potentially making the hair thicker, and this process can span over 6 months or more.

community 3 months on min + fin and my hair is shedding way more than before

in Treatment 129 upvotes 8 months ago

Hair shedding is common when using minoxidil and finasteride, often indicating that the treatment is working as weaker hairs fall out to make way for stronger growth. Many users experience multiple shedding cycles before seeing significant hair regrowth.

community My balding/recovery rollercoaster story so far. I've regrown and lost my hair like 8 times in the last few years. Developed gyno but luckily it's reversible for me. M27

5 upvotes 4 years ago

A 27-year-old man experienced hair regrowth and gynecomastia from finasteride, leading to a cycle of stopping and restarting the treatment. He is considering gyno surgery and consulting an endocrinologist as potential solutions.

community Predict if You'll Shed and Responding to Treatment: Ultrasound Imaging Technology

18 upvotes 1 year ago

Ultrasound imaging can predict hair shedding and assess hair growth stages by analyzing hair follicle characteristics. The conversation also discusses using ultrasound for personal hair analysis and mentions the potential use of infrared emission for hair treatment.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas