Evaluation of Hair Growth

July 2008

Naihui Zhou, Wenhong Fan

hair growth androgenetic alopecia finasteride minoxidil hair density shaft diameter rate of linear growth anagen:telogen ratio non-invasive methods semi-invasive methods invasive methods Propecia Rogaine

TLDR The document concludes that measuring hair density, shaft diameter, growth rate, and anagen:telogen ratio is important for assessing hair growth treatments.

The document from July 15, 2008, discusses the importance of evaluating hair growth, particularly in light of treatments for androgenetic alopecia such as finasteride and minoxidil. It outlines the main biological parameters for assessing hair growth, which include hair density, shaft diameter, rate of linear growth, and cycle status, with the anagen:telogen ratio being the most practical indicator for cycle status. The document categorizes the methods for evaluating hair growth into non-invasive, semi-invasive, and invasive, each with their specific applications and advantages. The focus on these evaluation methods reflects the interest of dermatologists and researchers in understanding and measuring hair growth.

View this study on rs.yiigle.com →

Discuss this study in the Community →

Related Community Posts Join

6 / 1000+ results

community Taking Charge of Your Hair: The "Big 3 Stack" Explained for 2023

in Research/Science 129 upvotes 2 years ago

The "Big 3 Stack" for hair loss treatment, which includes Minoxidil for hair density improvement, Ketoconazole shampoo for enhancing hair volume and thickness, and Finasteride for blocking hair loss causing hormones. Microneedling can boost Minoxidil's effects.

community The Real Cause Of Androgenetic Alopecia

in Research/Science 674 upvotes 1 year ago

Androgenetic alopecia is caused by DHT affecting hair growth. Finasteride and minoxidil are used to manage hair loss by blocking DHT and promoting hair growth.

community COMPLETE OVERVIEW of the Treatment of androgenetic alopecia in men

28 upvotes 11 years ago

Male androgenetic alopecia is commonly treated with topical minoxidil and oral finasteride, both requiring continuous use. Other options include hair restoration surgery, dutasteride, light therapy, and camouflaging agents.

Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

community Compressed part of research of theory of androgenic/anabolitic balance. AGA h-responders analytic. Theory of physio-metabolitic method of anti AGA treatment

in Research 865 upvotes 1 year ago

The treatment for androgenetic alopecia involves using finasteride and minoxidil with intense exercise and cold exposure to boost metabolism and reduce androgenic effects, potentially leading to hair regrowth. This approach may activate biological pathways for improved hair and overall health.

community 2020 Hair and Scalp Treatments: A Clinical Guide (in Depth 350 Page Guide)

in Treatment 64 upvotes 5 years ago

Treatments for hair loss, including topical immunotherapy, regenerative treatments, laser and light-based therapies, oral supplements, intralesional steroids, and new drugs like finasteride and minoxidil.

community GT20029 China Phase II Trial For AGA Reached Primary Endpoint

in Research/Science 134 upvotes 1 year ago

The GT20029 tincture, a topical androgen receptor degrader, showed significant hair growth and good safety in a China Phase II trial for male androgenetic alopecia (AGA), with the 1% dose twice weekly identified as optimal. The company plans to initiate Phase III trials in China and Phase II in the U.S., and the treatment also shows promise for acne.

Related Research

12 / 12 results

research Androgenetic Alopecia and Its Remedies: A Review

August 2014 in “Journal of drug discovery and therapeutics”

Topical minoxidil and oral finasteride can help regrow hair in androgenetic alopecia.

research A Brief Overview of the Role of Drugs and Novel Methodologies on the Stability and Growth of Hair Follicles: An Approach Towards Hair Regeneration

2 citations , January 2014 in “Journal of clinical and diagnostic research”

Emerging therapies like stem cell and laser treatments show promise for hair regeneration.

research Possibilities And Limitations For Reversal Of Age-Related Hair Loss

2 citations , January 2010

research The Genetically Programmed Hair Growth Cycle And Alopecia: What Is There To Know?

3 citations , June 2006 in “Expert Review of Dermatology”

The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.

research Natural Scalp Hair Regression in Preclinical Stages of Male Androgenetic Alopecia and Its Reversal by Finasteride

24 citations , January 2006 in “Skin Pharmacology and Physiology”

Finasteride reverses early hair loss and promotes growth.

research Disorders of Hair Growth: Diagnosis and Treatment

26 citations , January 1994 in “McGraw-Hill eBooks”

Many hair loss conditions can be treated.

research Hair Root Characteristics of the Human Scalp Hair in Health and Disease

11 citations , February 1982 in “RePub (Erasmus University, Rotterdam)”

Studying hair roots can help diagnose hair diseases and guide treatments.