January 2025 in “Open University of Cape Town (University of Cape Town)” Lipids play a key role in determining hair curvature.
32 citations
,
March 2016 in “American Journal of Physical Anthropology” African hair is curled, Asian hair is thick, European hair is lighter, and chemical methods help identify hair color differences.
3 citations
,
March 2019 in “Tekstil Ve Konfeksiyon” Anatolian native goat down-hair is similar to cashmere and can be used for high-quality textiles.
27 citations
,
March 2018 in “Journal of Experimental Biology” Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
8 citations
,
January 1986 in “The Journal of Dermatologic Surgery and Oncology” Hair loss surgeries like grafts, scalp reductions, and flap rotations can be effective for black men with proper technique adjustments.
5 citations
,
November 2024 in “Frontiers in Nutrition” LB-P9 supplements improve hair health and satisfaction without side effects.
16 citations
,
June 2017 in “PLoS ONE” A 6-group hair classification is more reliable for drug testing than an 8-group system.
June 2024 in “Nature Cell and Science” The Scalp Coverage Scoring method reliably measures hair density from images.
25 citations
,
August 2015 in “Journal of cosmetic dermatology” African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.
5 citations
,
June 2016 in “Twin research and human genetics” Hair diameter and curvature are mostly determined by genetics.
137 citations
,
July 2004 in “Journal of The American Academy of Dermatology” Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.
Afro-textured hair is more fragile and prone to certain scalp conditions, requiring careful treatment and more research for effective management.
February 2026 in “Cureus” Two methods reliably measure scalp area and hair count.
A hair transplant using hair from the back of the head and pubic area was successful in creating a feminine hairline for a male-to-female transgender person.
September 2025 in “Acta Scientific Pharmaceutical Sciences” Rice water may improve hair strength, shine, and growth, but more research is needed.
February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” The gene Prss53 affects hair shape and bone development in rabbits.
55 citations
,
October 2003 in “Dermatologic Clinics” Different hair care practices and conditions affect African American hair and scalp health, requiring specialized knowledge for treatment.
1 citations
,
September 2016 in “Indian Journal of Plastic Surgery” The new hair follicle harvesting technique improves hair transplant results and makes the procedure quicker and easier to learn.
10 citations
,
December 2021 in “Frontiers in cell and developmental biology” The research identified genes that explain why some sheep have curly wool and others have straight wool.
November 2023 in “Food science of animal resources” Lactilactobacillus curvatus LB-P9 taken orally helps hair regrow faster and thicker in mice.
62 citations
,
December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
January 2016 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” A 6-group geometric classification of human scalp hair is more reliable and objective for testing than an 8-group system.
501 citations
,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
1 citations
,
April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
January 2024 in “International Journal of Herbal Medicine” Melanin is important for hair color, health, and UV protection.
4 citations
,
June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
40 citations
,
January 2018 in “International journal of trichology” Healthy scalp reduces hair loss by managing oxidative stress.
218 citations
,
January 2013 in “The Lancet Oncology” Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.
40 citations
,
May 2012 in “British Journal of Dermatology” Recognizing specific features of African-American hair can help diagnose hair loss conditions.
12 citations
,
January 1978 in “The Laryngoscope” Using a scalp flap for hair transplantation gives denser, faster results than older methods, but it's complex and needs careful planning.