3 citations,
April 2021 in “Journal of Cosmetic Dermatology” The micrometer caliper is a reliable tool for measuring hair diameter for FUE surgery.
25 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.
61 citations,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
26 citations,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
29 citations,
March 2008 in “Dermatologic Surgery” The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.
94 citations,
July 1991 in “Clinical endocrinology” Cyproterone acetate at 2mg daily is as effective as higher doses for treating excessive hair growth in women.
January 1992 in “Juntendo Medical Journal” Male pattern baldness is mainly caused by a hormone called dihydrotestosterone (DHT), and drugs that can block this hormone might help prevent hair loss.
2 citations,
February 2020 in “Journal of Plastic Surgery and Hand Surgery” Good-looking donor sites for hair transplants usually have higher hair density and thicker hair.
23 citations,
July 1989 in “Postgraduate medical journal” Spironolactone did not make hair thinner in women with excess hair growth.
6 citations,
April 2006 in “Lupus” People with lupus and rheumatoid arthritis have thinner hair than healthy people.
5 citations,
June 2016 in “Twin research and human genetics” Hair diameter and curvature are mostly determined by genetics.
4 citations,
November 2004 in “Clinical and Experimental Dermatology” Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.
34 citations,
August 2003 in “Clinical and Experimental Dermatology” Pregnant women's hair gets thicker.
6 citations,
May 2021 in “Aesthetic Surgery Journal” Higher cell number PRP improves hair density and diameter more than lower cell number PRP.
3 citations,
March 2023 in “Biology” Genes affecting wool fiber thickness in Angora rabbits were identified, which could help breed finer wool.
A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.
24 citations,
December 2011 in “Journal of The American Academy of Dermatology” Caucasian hair is denser, but Asian hair is thicker in female pattern hair loss patients.
38 citations,
December 2011 in “British Journal of Dermatology” Menopause-related hormonal changes affect hair but are not the only cause of hair changes in middle-aged women.
11 citations,
January 2015 in “Annals of Dermatology” Using a hair removal laser can make hairs finer for better hairline correction in hair transplants, with most patients happy and few side effects.
1 citations,
March 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” The hair treatment made hair grow faster and thicker and strengthened the hair roots.
29 citations,
December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
1 citations,
January 2021 in “Pakistan journal of zoology” Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.
9 citations,
January 2011 in “Skin Research and Technology” The new automatic tool accurately measures hair thickness and is reliable.
17 citations,
May 2003 in “Journal of The American Academy of Dermatology” Hair from balding and non-balding areas regrows similarly on mice.
10 citations,
January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
25 citations,
March 2017 in “Journal of Dermatological Treatment” Platelet-rich plasma treatment for non-scarring hair loss shows mixed results and needs more research.
2 citations,
July 2008 in “Dermatologic Surgery” The Cross-section Trichometer is a promising tool for measuring hair characteristics without cutting the hair and may have various clinical uses.
2 citations,
December 1994 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The treatment effectively reduced hair growth and was safe for patients with PCOS, but it needs better bleeding control.
1 citations,
March 2021 in “Frontiers in Medicine” Female pattern hair loss shows similar characteristics in both genders and should be classified by hair loss patterns, not gender.
4 citations,
November 1996 in “European journal of endocrinology” Spironolactone may help treat excessive hair growth in girls, but more research is needed.