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Glossary Scalp Hair Growth

process of hair cycling through growth, rest, and shedding phases

Scalp hair growth refers to the process by which hair on the scalp undergoes a cycle of growth, rest, and shedding. This cycle includes three main phases: anagen (growth phase), catagen (transitional phase), and telogen (resting phase). The duration of these phases can vary, but typically, the anagen phase lasts several years, allowing hair to grow to its full length. Factors such as genetics, hormones, and overall health can influence the rate and quality of scalp hair growth.

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Research

5 / 1000+ results

research Scalp Hair Regrowth in Hormone-Treated Transgender Woman

23 citations , January 2016 in “Transgender health”

In this case report, a transgender woman experienced scalp hair regrowth after approximately six months of oral estradiol and spironolactone treatment, achieving testosterone levels within the normal female range.

research Scalp Hair Regrowth Is Associated With Improvements in Health-Related Quality of Life and Psychological Symptoms in Patients With Severe Alopecia Areata: Results From Two Randomized Controlled Trials

4 citations , March 2023 in “SKIN The Journal of Cutaneous Medicine”

This abstract does not provide specific results or a conclusion; additional context is needed to interpret the data.

research Patient-reported outcome improvements following scalp hair regrowth among patients with Alopecia Areata: analysis of the ALLEGRO-2b/3 trial

3 citations , February 2025 in “Journal of Dermatological Treatment”

This study found a positive association between clinically meaningful scalp hair regrowth and improvements in patient-reported outcomes, such as satisfaction and reduced psychosocial burden.

Scalp Hair Regrowth Is Associated With Improvements in Health-Related Quality of Life and Psychological Symptoms in Patients With Severe Alopecia Areata: Results From Two Randomized Controlled Trials

research Scalp hair regrowth is associated with improvements in health-related quality of life and psychological symptoms in patients with severe alopecia areata: results from two randomized controlled trials

3 citations , June 2023 in “Journal of dermatological treatment”

This study found that patients with severe alopecia areata who experienced meaningful scalp hair regrowth showed greater improvements in health-related quality of life and reduced anxiety and depression compared to those with no or minimal regrowth.

Improvements in Health-Related Quality of Life and Psychological Symptoms in Patients With Severe Alopecia Areata Achieving Scalp Hair Regrowth: Results From Two Randomized Controlled Trials

research 41915 Improvements in health-related quality of life and psychological symptoms in patients with severe alopecia areata achieving scalp hair regrowth: results from two randomized controlled trials

1 citations , September 2023 in “Journal of the American Academy of Dermatology”

This study focused on baricitinib's effect on patients with severe alopecia areata, highlighting its efficacy for hair regrowth and its potential to improve health-related quality of life and psychological symptoms, as seen in two phase 3 trials.

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Community Join

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community Is the change in scalp texture (more creases, less shiny) a positive sign of hair regrowth and scalp recovery, or not significant?

in Update 1 upvotes 1 year ago

The user has been using a hair regrowth regimen for 9-10 months, including topical finasteride and minoxidil, various oils, and supplements like multivitamins and omega-3. They observed fine hairs returning and a change in scalp texture after adding cinnamon oil, questioning if this indicates positive hair regrowth.

community 8 months of hair / scalp regrowth

1070 upvotes 2 months ago

The user experienced significant hair regrowth after 8 months on hormone replacement therapy (HRT) without using minoxidil or finasteride. Previous use of dutasteride showed no results.

community Botox or Scalp massaging for hair regrowth?

4 upvotes 2 years ago

Botox may help with hair regrowth, but the effectiveness of scalp massaging is uncertain. DHT is a factor in hair loss, but not the only cause.

community Is the change in scalp texture (more creases, less shiny) a positive sign of hair regrowth and scalp recovery, or not significant?

in Treatment 1 year ago

The user has been using a regimen including finasteride, minoxidil, various oils, and supplements for hair regrowth over 9–10 months. They observed fine hairs returning and a change in scalp texture after adding cinnamon oil, questioning if this change is a positive sign.

community Looking for honest experiences with natural scalp + hair regrowth routines (no chemicals if possible)

8 months ago

The conversation discusses natural, chemical-free methods for scalp health and hair regrowth, such as using oils like rosemary, ginger, castor, and peppermint. It seeks personal experiences and effective routines for hair regrowth, especially after chemo or stress-related hair thinning.

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Learn

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learn Spironolactone

Is spironolactone better for hair regrowth as a pill or as a scalp solution? Oral spironolactone has the stronger published evidence for hair regrowth; topical versions cause fewer systemic side effects but have been studied far less, and no trial has compared the two head to head.

learn Ginkgo biloba

How does ginkgo biloba improve scalp circulation and does that help with hair regrowth? Ginkgo biloba may improve scalp circulation, but evidence for hair regrowth is inconclusive.

learn Setipiprant

How does Setipiprant work on the scalp to potentially promote hair regrowth? Setipiprant blocks the DP2 (CRTH2) receptor that prostaglandin D₂ acts through, and PGD₂ is reported to be elevated in balding scalp — but the one published placebo-controlled trial in men (DuBois 2021, n=169) found no significant hair regrowth. It is an experimental compound, not an approved hair-loss medicine.

learn Scalp Micropigmentation

When will I see new hair growth after scalp micropigmentation? Providers describe scalp micropigmentation as a cosmetic tattoo that does not regrow hair, so there is no regrowth timeline to wait for. The 3-to-6-month and 9-to-12-month milestones often quoted alongside it belong to hair transplant surgery, not to SMP.
Will scalp micropigmentation damage my existing hair or follicles? Scalp micropigmentation does not damage existing hair or follicles.