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GlossaryTerminal Hair Count

number of thick, pigmented hairs on the body

Terminal Hair Count refers to the number of thick, pigmented hairs on the scalp or other parts of the body. These hairs are fully developed and contrast with finer, lighter vellus hairs. In clinical settings, measuring the terminal hair count can help assess the effectiveness of treatments for hair loss conditions like androgenetic alopecia.

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Measuring Reversal of Hair Miniaturization in Androgenetic Alopecia by Follicular Counts in Horizontal Sections of Serial Scalp Biopsies: Results of Finasteride 1mg Treatment of Men and Postmenopausal Women

research Measuring Reversal of Hair Miniaturization in Androgenetic Alopecia by Follicular Counts in Horizontal Sections of Serial Scalp Biopsies: Results of Finasteride 1mg Treatment of Men and Postmenopausal Women

145 citations, December 1999 in “Journal of Investigative Dermatology Symposium Proceedings”

Finasteride 1mg helps reverse hair miniaturization in men and postmenopausal women.

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.

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.

Comparing Single-Spin Versus Double-Spin Platelet-Rich Plasma Centrifugation Methods on Thrombocyte Count and Clinical Improvement of Androgenetic Alopecia: A Preliminary, Randomized, Double-Blind Clinical Trial

research Comparing Single-Spin Versus Double-Spin Platelet-Rich Plasma Centrifugation Methods on Thrombocyte Count and Clinical Improvement of Androgenetic Alopecia: A Preliminary, Randomized, Double-Blind Clinical Trial

December 2023 in “PubMed”

Both single-spin and double-spin PRP methods effectively treat hair loss, with single-spin slightly increasing platelet count more.

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 Novel Approach to Treating Androgenetic Alopecia in Females With Photobiomodulation (Low-Level Laser Therapy)

33 citations, March 2017 in “Dermatologic Surgery”

Low-level laser therapy effectively treats female hair loss, increasing hair count by 51%.

A 3-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Ability of an Extra-Strength Marine Protein Supplement to Promote Hair Growth and Decrease Shedding in Women with Self-Perceived Thinning Hair

research A 3-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Ability of an Extra-Strength Marine Protein Supplement to Promote Hair Growth and Decrease Shedding in Women with Self-Perceived Thinning Hair

22 citations, January 2015 in “Dermatology Research and Practice”

An extra-strength marine protein supplement helped increase hair growth and decrease hair shedding in women with thinning hair.

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 Examining the Safety and Efficacy of Low-Level Laser Therapy for Male and Female Pattern Hair Loss: A Review of the Literature

11 citations, January 2020 in “Skin appendage disorders”

Low-level laser therapy safely and effectively improves hair growth and coverage for male and female pattern hair loss.

research Reply to: The Use of Low-Level Light for Hair Growth: Part I

10 citations, January 2010 in “Journal of cosmetic and laser therapy”

The letter criticizes a study's methods and small size, suggesting larger, better-designed research would show low-level light therapy effectively grows hair.

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.

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.

Efficacy of Dr. SKS Hair Booster Serum in the Treatment of Female Pattern Alopecia in Patients With PCOS: An Open-Label, Non-Randomized, Prospective Study

research Efficacy of Dr. SKS Hair Booster Serum in the Treatment of Female Pattern Alopecia in Patients With PCOS: An Open-Label, Non-Randomized, Prospective Study

September 2023 in “Cureus”

Dr. SKS Hair Booster Serum effectively treats hair loss in women with PCOS.

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.

Intradermal Injections of a Hair Growth Factor Formulation for Enhancement of Human Hair Regrowth: Safety and Efficacy Evaluation in a First-in-Man Pilot Clinical Study

research Intradermal Injections of a Hair Growth Factor Formulation for Enhancement of Human Hair Regrowth: Safety and Efficacy Evaluation in a First-in-Man Pilot Clinical Study

17 citations, February 2018 in “Journal of Cosmetic and Laser Therapy”

The QR 678 hair growth treatment was safe and effective for hair regrowth in men and women.

Characterization of X-Linked Hypohidrotic Ectodermal Dysplasia Hair and Sweat Gland Phenotypes Using Phototrichogram Analysis and Live Confocal Imaging

research Characterization of X-Linked Hypohidrotic Ectodermal Dysplasia Hair and Sweat Gland Phenotypes Using Phototrichogram Analysis and Live Confocal Imaging

15 citations, May 2013 in “American Journal of Medical Genetics - Part A”

People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.

Hair Follicle Changes Following Intense Pulsed Light Axillary Hair Reduction: Histometrical, Histological, and Immunohistochemical Evaluation

research Hair Follicle Changes Following Intense Pulsed Light Axillary Hair Reduction: Histometrical, Histological, and Immunohistochemical Evaluation

8 citations, February 2017 in “Archives of Dermatological Research”

Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.

A Randomized, Controlled Pilot Trial Comparing Platelet-Rich Plasma to Topical Minoxidil Foam for Treatment of Androgenic Alopecia in Women

research A Randomized, Controlled Pilot Trial Comparing Platelet-Rich Plasma to Topical Minoxidil Foam for Treatment of Androgenic Alopecia in Women

22 citations, October 2019 in “Dermatologic Surgery”

Both Platelet-Rich Plasma and Minoxidil foam increase hair count in women with hair loss, but Minoxidil is more effective. However, women were more satisfied with Platelet-Rich Plasma treatment.

research Use of the TrichoScan to Assess Female Pattern Hair Loss

30 citations, April 2009 in “Dermatologic Surgery”

TrichoScan helps identify subtle hair thinning in women with androgenetic alopecia.

Evaluation of Platelet-Rich Plasma Plus Basic Fibroblast Growth Factor Combined With Minoxidil in the Treatment of Androgenetic Alopecia: A Randomized Controlled Trial

research Evaluation of Platelet-Rich Plasma Plus Basic Fibroblast Growth Factor Combined With Minoxidil in the Treatment of Androgenetic Alopecia: A Randomized Controlled Trial

May 2023 in “Journal of Cosmetic Dermatology”

Using platelet-rich plasma, basic fibroblast growth factor, and minoxidil together significantly increases hair count and growth rate in people with hair loss.

research Effects of a New Mild Shampoo for Preventing Hair Loss in Asians Using a Simple Hand-Held Phototrichogram Technique

9 citations, June 2011 in “International Journal of Cosmetic Science”

The new mild shampoo helped prevent hair loss in the subjects.

research Novel Wearable Device Stops Hair Loss and Stimulates Hair Growth in Patients with Androgenic Alopecia: A Pilot Study

July 2024 in “The journal of investigative dermatology/Journal of investigative dermatology”

A new wearable device stops hair loss and boosts hair growth safely.

research Comparative Study Between the Efficacy and Safety of Topical Sildenafil Citrate Solution and Topical Minoxidil 5% in the Treatment of Female Pattern Hair Loss

November 2022 in “Research Square (Research Square)”

Topical minoxidil 5% is better for treating female pattern hair loss than topical sildenafil 1%.

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.

research The Evidence Behind Topical Hair Loss Remedies on TikTok

February 2023 in “Cutis”

Some TikTok hair loss remedies like rosemary oil, onion juice, and garlic gel show promise, but more research is needed and they might delay proper treatment.

research Lasers in Hair Growth and Hair Transplantation

January 2018 in “Springer eBooks”

Lasers are less favored for hair transplant surgery but show promise for hair growth in controlled trials.

research Topical Minoxidil in Early Male Pattern Baldness

138 citations, August 1985 in “Journal of The American Academy of Dermatology”

Minoxidil promotes hair growth in male pattern baldness.