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research Melatonin regulates the periodic growth of secondary hair follicles through the nuclear receptor RORα

July 2023 in “Frontiers in Veterinary Science”

This study found that exogenous melatonin binds to the nuclear receptor RORα in Inner Mongolia cashmere goats, stimulating secondary hair follicle development and promoting villus growth.

research Utilization of L-Cystine and L- and D-Methionine by Mink during the Period of Intensive Hair Growth

7 citations , January 1982 in “Acta agriculturae Scandinavica”

Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.

research Bioassay of Crude Drugs for Hair Growth Promoting Activity in Mice by a New Simple Method

16 citations , January 1980 in “Planta Medica”

This study found that alcoholic extracts of Cinchona succirubra, Dictamnus dasycarpus, Brassica juncea, and Sophora flavescens promoted hair growth in 5-week-old mice.

research The changes in the hair cycle during gestation and the post-partum period

34 citations , May 2013 in “Journal of the European Academy of Dermatology and Venereology”

In this study, changes in hair cycle phases during pregnancy and the post-partum period showed a rise in telogen rates after delivery, especially among non-breastfeeding women, but no drastic exaggerations were noted.

research Sanguisorba Officinalis Root Extract Has FGF-5 Inhibitory Activity and Reduces Hair Loss by Causing Prolongation of the Anagen Period

3 citations , January 2007 in “Nishinihon hifuka/Nishi Nihon hifuka”

This study found that Sanguisorba Officinalis Root Extract showed potential in reducing hair loss by inhibiting FGF-5 activity, extending hair growth phases in mice and reducing hair loss in human trials.

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Community Join

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community Does periodic shedding make long hair with finasteride impossible?

in Finasteride/Dutasteride 7 upvotes 5 months ago

Finasteride can help extend the hair growth cycle and improve hair density, allowing for long hair despite initial shedding. Periodic shedding may occur, but it typically does not affect healthy hair significantly.

community Extreme growth from only vitamins!

in Update 63 upvotes 1 year ago

A user experienced significant hair regrowth after improving their diet, getting sunlight, taking a multivitamin, and exercising, following a period of extreme calorie restriction and hair shedding. Others in the conversation attribute the hair regrowth to increased calorie intake rather than just vitamins.

community Hair Growth or Loss Tracking Tool

in Research 141 upvotes 1 year ago

A user is developing a tool to track hair density, aiming to help those using treatments like minoxidil. They seek feedback on the tool's usefulness and are considering a low-cost model to cover expenses.

community Oral minoxidil works like crazy

in Update 6 upvotes 1 year ago

Oral minoxidil significantly increases hair growth, including facial hair, in a short period. Some users suggest combining it with finasteride for better long-term results, despite potential side effects.

community Odd Hair Growth (Possibly More Than Genetics?)

in Is this regrowth? 2 upvotes 2 years ago

A 23-year-old user shares their hair regrowth journey, questioning if genetics or other factors are at play. They use Rogaine, finasteride, vitamin B12, biotin, Thera M Plus, and derma stamping, and seek advice on their regimen and hair growth patterns.

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Clinics

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Learn

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learn Hair Transplant

How long does it take for transplanted hair to grow after a hair transplant? New hair growth after a transplant typically starts around 3-4 months.
What happens after a hair transplant? Expect mild swelling and redness, with new hair growth starting in 3 to 6 months.
How long does a hair transplant procedure take? A hair transplant procedure typically takes 4 to 8 hours.
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learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Bimatoprost

Prostaglandin eye drop used for glaucoma and eyelash growth

learn Bicalutamide

Nonsteroidal anti-androgen, originally a prostate cancer drug

learn Neem Oil

Oil from the neem tree, used in traditional remedies

learn Caffeine

Does caffeine stimulate hair growth or only slow hair loss? Caffeine stimulates hair follicles in laboratory cultures, and one open-label, manufacturer-funded trial in 210 men found a 0.2% caffeine topical non-inferior to minoxidil 5% on an anagen-ratio endpoint. A 2025 systematic review found only a few small controlled trials, mostly rated low or very low quality, and none in alopecia areata.

learn KY19382

Experimental compound that activates hair-growth signals, tested only in animals

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