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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

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research Improvement in scalp hair growth in androgen‐deficient women treated with testosterone: a questionnaire study

21 citations , October 2011 in “British Journal of Dermatology”

This study found that subcutaneous testosterone therapy improved scalp hair growth in a majority of androgen-deficient women who previously reported hair thinning and did not report hair loss as a side effect.

The Penetration Enhancer SEPA Augments Stimulation of Scalp Hair Growth by Topical Minoxidil in the Balding Stumptail Macaque

research The Penetration Enhancer SEPA^TM Augments Stimulation of Scalp Hair Growth by Topical Minoxidil in the Balding Stumptail Macaque

16 citations , March 2009 in “Skin Pharmacology and Physiology”

This study found that the penetration enhancer SEPA™ significantly increased both the speed and amount of hair growth from minoxidil in balding stumptail macaques compared to Rogaine®.

research Short anagen hair with persistent synchronized pattern of scalp hair growth

16 citations , October 2003 in “Journal of The American Academy of Dermatology”

This study describes a 4-year-old boy who exhibits a rare, synchronized pattern of hair growth and shedding, unlike the typical asynchronous pattern seen in humans.

research Scalp condition impacts hair growth and retention via oxidative stress

40 citations , January 2018 in “International journal of trichology”

This article reviews the relationship between scalp conditions and hair health, suggesting that shampoos with Malassezia inhibitory agents may help reduce premature hair loss, but it presents no new clinical results.

research Role of scalp health in achieving optimal hair growth and retention

5 citations , May 2021 in “International Journal of Cosmetic Science”

This review discusses the evidence for a cause-and-effect relationship between scalp condition and hair condition, and reports no new clinical results from trials.

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Community Join

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community Scalp hydration's surprising link to hair growth cycle regulation

in Technology 23 upvotes 4 months ago

Scalp hydration may influence hair growth by affecting the signaling pathways that control the hair growth cycle. Users suggest using facial moisturizer, aloe vera, and oils for scalp hydration.

community Bimatoprost vs Latanoprost for scalp hair growth

in Treatment 1 upvotes 6 months ago

Bimatoprost and latanoprost are being considered for scalp hair growth, with concerns about side effects like skin darkening and fat loss. A user warns about potential chemical burns from latanoprost.

community Can Coffee on scalp help with hairloss , increase hair growth ?

in Will treatment work for me? 1 upvotes 2 years ago

Caffeine may help with hair growth. A YouTube user reportedly grew significant hair using dermarolling and coffee on the scalp.

community Lasering body hair off boosts scalp hair growth?

4 upvotes 7 years ago

Lasering off body hair does not boost scalp hair growth, as removing body hair does not redirect hair growth substances to the scalp. The idea that body hair uses up resources needed for scalp hair is incorrect, and treatments like finasteride are suggested for addressing hair loss.

community Head and Shoulders 2-in-1 shampoo and conditioner use resulting in hair growth by reducing scalp inflammation and DHT?

8 upvotes 2 years ago

User experienced new hair growth after using Head and Shoulders 2-in-1 shampoo/conditioner, attributing it to pyrithione zinc reducing scalp inflammation and DHT. They seek others' experiences with anti-dandruff products.

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Learn

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learn Scalp Micropigmentation

scalp tattoos to mimic the appearance of light stubble

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.

learn Microneedling

How does microneedling boost hair growth in thinning areas of the scalp? Microneedling boosts hair growth by stimulating follicle activity and enhancing blood flow.

learn Vitis vinifera

Can grape extract help with scalp circulation or hair growth? Grape extract may improve scalp circulation but lacks strong evidence for hair growth.

learn Lavender

Does lavender promote hair growth or just soothe an irritated scalp? Lavender may promote hair growth and soothe an irritated scalp.

learn Stemoxydine

How does stemoxydine help stimulate new hair growth on the scalp? Stemoxydine stimulates new hair growth by promoting hair follicles to transition from the resting phase to the active growth phase.

learn Platelet-Rich Plasma

growth factors taken from your blood and injected into your scalp to stimulate hair

learn Bimatoprost

a synthetic prostamide used to treat eyelashes also shows promise for stimulating hair growth on scalp

learn Castor oil

a traditional, natural remedy touted for promoting scalp health and hair growth

learn Exosomes

Microscopic delivery system that sends growth-promoting signals to hair follicles

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Clinics

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Experts

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24
Trichologist
Kirsten J. Scalp
Greenville, SC, United States

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Kirsten J. Scalp