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Glossary Hair Cycle Arrest

normal hair growth phases are disrupted, halting new hair production

Hair Cycle Arrest refers to a condition where the normal cycle of hair growth is disrupted, causing hair follicles to stop progressing through their usual phases of growth, rest, and shedding. This can lead to thinning hair or hair loss, as the follicles remain in a dormant state and fail to produce new hair. It can be caused by various factors, including hormonal imbalances, stress, or underlying medical conditions.

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Research

5 / 1000+ results

Adrenal Steroid Hormone Concentrations in Dogs with Hair Cycle Arrest (Alopecia X) Before and During Treatment with Melatonin and Mitotane

research Adrenal steroid hormone concentrations in dogs with hair cycle arrest (Alopecia X) before and during treatment with melatonin and mitotane

52 citations , October 2004 in “Veterinary dermatology”

This study found that 62% of neutered dogs with hair cycle arrest experienced partial to complete hair re-growth after melatonin treatment, but hair re-growth was not consistently linked to normal sex hormone levels.

Characterization of Cell Cycle Arrest and Terminal Differentiation in a Maximally Proliferative Human Epithelial Tissue: Lessons from the Human Hair Follicle Matrix

research Characterisation of cell cycle arrest and terminal differentiation in a maximally proliferative human epithelial tissue: Lessons from the human hair follicle matrix

30 citations , April 2017 in “European Journal of Cell Biology”

This study observed that CIP/KIP proteins play a significant role in regulating cell cycle arrest and differentiation in human hair follicles, supporting hair growth and formation in the anagen phase.

research Oestrogen receptor evaluation in Pomeranian dogs with hair cycle arrest (alopecia X) on melatonin supplementation

20 citations , July 2006 in “Veterinary dermatology”

This study found that hair regrowth in Pomeranians with hair cycle arrest treated with melatonin was not associated with a change in oestrogen receptor-α staining.

research Oestrogen receptor antagonist and hair regrowth in dogs with hair cycle arrest (alopecia X)

11 citations , January 2007 in “Veterinary dermatology”

This study found that administerating 10 mg/kg intramuscular fulvestrant did not stimulate hair regrowth in Pomeranian dogs with alopecia X, though higher doses may warrant further investigation.

research Deslorelin for the treatment of hair cycle arrest in intact male dogs

10 citations , July 2014 in “Veterinary dermatology”

This study found that deslorelin may promote hair regrowth in intact male dogs with hair cycle arrest, but had no effect on neutered females.

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Community Join

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community progress has been insane, been having a bad shed for about a month or 2, can anyone explain?

in Progress Pictures 678 upvotes 2 years ago

User experienced significant hair regrowth using minoxidil and dutasteride, along with microneedling, vitamins, and massages. Despite recent shedding, they hope it's a synchronized hair cycle and plan to continue the treatment.

community PP405 Won't Work Long Term: Hair Follicle Damage Due to Abuse of the ISR System

67 upvotes 11 months ago

PP405 may damage hair follicles if used long-term, suggesting cycling might be necessary. Combining it with finasteride could help maintain hair growth.

community Do hair follicles dies or are dormant ?

in Finasteride/Dutasteride 92 upvotes 1 year ago

Hair follicles can be dormant and potentially revived with treatments like finasteride and minoxidil, but irreversible loss occurs if certain structures are destroyed. Early intervention is more effective, and additional methods like microneedling may help.

community Fats on your Head to Stop Hair Loss?

140 upvotes 2 years ago

The conversation discusses the potential of long-chain unsaturated fatty acids, like oleic and linoleic acid, as an additional treatment for hair loss, which may inhibit the enzyme responsible for converting testosterone to DHT and promote hair growth. Users humorously suggest using oils topically and discuss other hair loss treatments, but the main focus is on the science behind fatty acids and their role in hair health.

community Peptides that Stop Hair Loss? | In-depth Literature Review Video

76 upvotes 2 years ago

Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.

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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 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.

learn Rapamycin

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.