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GlossaryTerminal Hair Density

number of thick, pigmented hairs per unit area

Terminal Hair Density refers to the number of thick, pigmented hairs (known as terminal hairs) per unit area of the scalp or other body regions. This measurement is often used in clinical settings to assess hair growth patterns, diagnose hair loss conditions like alopecia, and evaluate the effectiveness of hair restoration treatments.

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The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

research The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

1 citations, December 2022 in “Clinical, Cosmetic and Investigational Dermatology”

Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.

research Hair Regrowth in Male and Female Pattern Hair Loss Does Not Involve the Conversion of Vellus Hair to Terminal Hair

14 citations, January 2016 in “Experimental Dermatology”

Hair regrowth doesn't convert thin hairs to thick hairs, but increases overall hair density.

research The Density Issue in Hair Transplantation

32 citations, September 1997 in “Dermatologic Surgery”

Mini-micrografting in hair transplants can give similar density to older methods with fewer sessions.

Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-Controlled, Double-Blind Study

research Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-Controlled, Double-Blind Study

147 citations, January 2014 in “American Journal of Clinical Dermatology”

Laser device increases hair density, safe for treating hair loss in men and women.

Comparison of the Effects of 665 nm Low-Level Diode Laser Hat Versus a Combination of 665 nm and 808 nm Low-Level Diode Laser Scanner on Hair Growth in Androgenic Alopecia

research Comparison of the Effects of 665 nm Low-Level Diode Laser Hat Versus a Combination of 665 nm and 808 nm Low-Level Diode Laser Scanner on Hair Growth in Androgenic Alopecia

24 citations, May 2017 in “Journal of Cosmetic and Laser Therapy”

The laser scanner device was more effective at increasing hair density than the laser hat in treating androgenic alopecia.

research Patient Selection, Hair Transplant Design, And Hairstyle

20 citations, May 1992 in “The Journal of Dermatologic Surgery and Oncology”

Dr. Norwood's analysis highlights the need for careful patient selection and strategic hair transplant design to create a natural-looking hair density.

research Female Hair Concerns With Age

December 2011 in “British Journal of Dermatology”

As women age, they experience changes in hair density and volume, face challenges in distinguishing normal hair loss from disease, and have limited access to treatments for hair issues.

research The Effect of Plasma Rich in Growth Factors on Pattern Hair Loss: A Pilot Study

70 citations, February 2017 in “Dermatologic Surgery”

Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.

The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

47 citations, September 2008 in “British Journal of Dermatology”

Ludwig pattern hair loss in women results from varying sensitivity in hair follicles, causing fewer visible hairs.

research Normal Hair Growth in Children

57 citations, November 1987 in “Pediatric Dermatology”

Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.

A 6-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Ability of a Marine Complex Supplement to Promote Hair Growth in Men with Thinning Hair

research A 6-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Ability of a Marine Complex Supplement to Promote Hair Growth in Men with Thinning Hair

25 citations, August 2016 in “Journal of Cosmetic Dermatology”

The marine complex supplement significantly improved hair growth in men with thinning hair without adverse effects.

research Hair Regrowth Following a Wnt- and Follistatin-Containing Treatment: Safety and Efficacy in a First-in-Man Phase 1 Clinical Trial

16 citations, November 2011 in “PubMed”

The treatment improved hair growth in people with male pattern baldness.

research Clinical Study to Evaluate the Efficacy and Safety of a Hair Serum Product in Healthy Adult Male and Female Volunteers with Hair Fall

14 citations, September 2020 in “Clinical, cosmetic and investigational dermatology”

The hair serum significantly improved hair growth and reduced hair fall without causing any skin issues.

research Safety and Efficacy of ALRV5XR in Women with Androgenetic Alopecia or Telogen Effluvium: A Randomised, Double-Blinded, Placebo-Controlled Clinical Trial

6 citations, June 2021 in “EClinicalMedicine”

ALRV5XR significantly improves hair density in women with hair loss and is well-tolerated.

Commentary on a Randomized Placebo-Controlled, Double-Blind, Half-Head Study to Assess the Efficacy of Platelet-Rich Plasma on the Treatment of Androgenetic Alopecia

research Commentary on a Randomized Placebo-Controlled, Double-Blind, Half-Head Study to Assess the Efficacy of Platelet-Rich Plasma on the Treatment of Androgenetic Alopecia

4 citations, March 2016 in “Dermatologic Surgery”

PRP treatment increased hair density, especially in men and younger patients with AGA.

research Safety and Efficacy of ALRV5XR in Men with Androgenetic Alopecia: A Randomised, Double-Blinded, Placebo-Controlled Clinical Trial

3 citations, September 2021 in “EClinicalMedicine”

ALRV5XR effectively increases hair density in men with androgenetic alopecia without adverse effects.

research Topical Cetirizine 1% for Treatment of Androgenetic Alopecia

2 citations, August 2017 in “Dermatologic Therapy”

Topical cetirizine 1% increases hair density and may be a promising treatment for hair loss.

research Low-Level Laser Therapy for Androgenic Alopecia

2 citations, January 2014 in “International Journal of Trichology”

Low-level laser therapy may increase hair density in pattern hair loss.

P110 Comparative Efficacy of Low-Dose Oral Minoxidil, Topical Minoxidil, and Platelet-Rich Plasma with Topical Minoxidil in Androgenetic Alopecia: A Randomized Controlled Trial

research P110 Comparative Efficacy of Low-Dose Oral Minoxidil, Topical Minoxidil, and Platelet-Rich Plasma with Topical Minoxidil in Androgenetic Alopecia: A Randomized Controlled Trial

June 2024 in “British Journal of Dermatology”

PRP with topical minoxidil is the most effective treatment for increasing hair density in androgenetic alopecia.

Comparative Efficacy of Low-Dose Oral Minoxidil, Topical Minoxidil, and Platelet-Rich Plasma with Topical Minoxidil in Androgenetic Alopecia: A Randomized Controlled Trial

research Comparative Efficacy of Low-Dose Oral Minoxidil, Topical Minoxidil, and Platelet-Rich Plasma with Topical Minoxidil in Androgenetic Alopecia: A Randomized Controlled Trial

June 2024 in “British Journal of Dermatology”

Combining PRP with topical minoxidil is the most effective for increasing hair density in male pattern baldness.

research Clinical and Instrumental Characterization of Hair and Scalp Aging in Nonbalding Caucasian Women

August 2018 in “Journal of The American Academy of Dermatology”

Aging significantly affects the hair and scalp of nonbalding Caucasian women, with changes that differ from male pattern baldness.

research Low-Level Light Therapy and Hair Loss

January 2012 in “Human health handbooks”

Low-level light therapy is FDA-approved for male pattern hair loss, increases hair count and strength, and is considered safe for use.

research Use of Autologous Platelet-Rich Plasma in Androgenetic Alopecia in Women: A Systematic Review and Meta-Analysis

October 2022 in “Journal of Dermatological Treatment”

PRP can increase hair density in women with hair loss, but more research is needed.

research Hair Counts from Normal Scalp Biopsy in Taiwan

24 citations, September 2012 in “Dermatologic Surgery”

The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.

Effects of an Oral Contraceptive Containing Chlormadinone Acetate and Ethinylestradiol on Hair and Skin Quality in Women Wishing to Use Hormonal Contraception

research Effects of an Oral Contraceptive Containing Chlormadinone Acetate and Ethinylestradiol on Hair and Skin Quality in Women Wishing to Use Hormonal Contraception

6 citations, March 2012 in “Journal of the European Academy of Dermatology and Venereology”

The oral contraceptive improved hair and skin quality in women.

Evaluation of the Safety and Effectiveness of Intradermal Administration of QR678 Neo Hair Growth Factor Formulation: A Phase-IV, Open-Label, Single-Arm Multi-Ethnicity Clinical Trial

research Evaluation of the Safety and Effectiveness of Intradermal Administration of QR678 Neo Hair Growth Factor Formulation: A Phase-IV, Open-Label, Single-Arm Multi-Ethnicity Clinical Trial

2 citations, January 2022 in “Journal of Cosmetic Dermatology”

QR678 Neo® is a safe and effective treatment for hair loss in men and women.

research Efficacy Evaluation of a Novel Home-Used Device Based on Multiple Stimulation Technology on Hair Growth in Patients with Androgenetic Alopecia

1 citations, August 2018 in “Madridge journal of dermatology & research”

The device effectively and safely increased hair growth in people with Androgenetic Alopecia.

research Does Low-Energy Fractional Carbon Dioxide Laser Therapy Improve Hair Regrowth in Female-Pattern Hair Loss?

September 2024 in “Egyptian Journal of Dermatology and Venerology”

Low-energy fractional CO2 laser therapy significantly improves hair regrowth in women with female-pattern hair loss.

Correction to 'Divergent Progression Pathways in Male Androgenetic Alopecia and Female Pattern Hair Loss: Trichoscopic Perspectives'

research Correction to 'Divergent Progression Pathways in Male Androgenetic Alopecia and Female Pattern Hair Loss: Trichoscopic Perspectives'

June 2024 in “Journal of cosmetic dermatology”

The document corrects errors in a table about hair loss in women.

research Fractional CO2 Laser, Platelet Rich Plasma and Combination of Both in Treatment of Female Pattern Hair Loss

May 2024 in “Journal of the Egyptian Women's Dermatologic Society /Journal of the Egyptian Women's Dermatologic Society”

Combining fractional CO2 laser and PRP is very effective for treating female hair loss.