13 citations
,
September 1976 in “Archives of Environmental Health An International Journal” Bushman women have higher iron and zinc levels, while American mothers have more copper.
12 citations
,
December 1981 in “Journal of Endocrinology” α-MSH increases melanin production in moulting hair follicles, while AVT inhibits it.
10 citations
,
February 2019 in “Journal of cellular physiology” TGF-β2 helps yak hair follicles enter the regression phase, while HSP70 tries to prevent it.
9 citations
,
January 2021 in “BioMed research international” Human hair-derived particles can effectively carry and release the cancer drug Paclitaxel in a pH-sensitive manner, potentially targeting cancer cells while sparing healthy ones.
6 citations
,
April 1989 in “Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms” Sulphur in hair follicles increases from the bulb and then levels off, while other elements vary in distribution.
1 citations
,
June 2022 in “Journal of Plastic Reconstructive and Aesthetic Surgery” Hair restoration surgeons have a 15% yearly risk of being sued, and while they often win, the process is stressful and costly.
January 2021 in “Lecture notes in mechanical engineering” High temperatures, acidic conditions, and too much coconut oil damage hair, while a pH of 5 to 7 keeps it healthy.
January 2011 in “Nuclear Techniques” Lead levels in hair increased due to environmental exposure, while iron, copper, and zinc levels stayed stable.
Low doses of certain Chinese herbs can promote hair growth, while high doses may inhibit it.
211 citations
,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
37 citations
,
October 2014 in “Maturitas” Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.
11 citations
,
November 2003 in “PubMed” Treatments with certain oils and resins make hair shinier, while zinc oxide and synthetic sebum make it duller.
3 citations
,
July 1997 in “Current problems in dermatology” Hair restoration surgery has evolved over time, with a focus on natural-looking results and managing patient expectations, while also considering potential complications and the lifelong progression of male pattern baldness.
23 citations
,
January 2003 in “Journal of Pediatric Endocrinology and Metabolism” About 15% of US Army personnel use hair products containing hormone or placenta, with higher usage among non-whites, females, and enlisted personnel.
16 citations
,
August 2000 in “Il Farmaco” Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
January 2026 in “Archives of Current Medical Research” Telogen effluvium is the most common hair loss in women, often linked to low iron, while tight hairstyles and headscarves increase traction alopecia risk.
52 citations
,
May 2015 in “PLOS Genetics” miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.
37 citations
,
January 1975 in “Journal of Experimental Zoology” Epilation doesn't affect rat hair growth; thyroxine speeds it up, while estradiol slows it down.
14 citations
,
May 2019 in “Chemosphere” Females have higher Dechlorane Plus in hair, while males have more in dorm dust.
4 citations
,
August 2019 in “General and Comparative Endocrinology” Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.
2 citations
,
January 2002 in “Zhiwu Yanjiu” Capitate trichomes have more endoplasmic reticulum and vacuoles, while peltate trichomes have more plastids and larger subcuticular spaces.
1 citations
,
January 2023 in “Journal of Clinical Medicine” A new hair restoration technology was found to effectively increase hair thickness, density, and growth, while reducing hair loss and improving scalp health, with no side effects.
Low-level light therapy, possibly combined with other treatments, may become a leading hair loss treatment, while hirsutism often worsens with age and lacks preventive options.
July 2011 in “Springer eBooks” The document concluded that FDA-approved treatments like minoxidil and finasteride are effective for hair loss, while the effectiveness of natural remedies and other non-approved treatments is not well-supported by evidence.
Calcium and hydrogen ions help root hair growth, while aluminum inhibits it.
November 2018 in “Springer eBooks” The document concludes that hair transplant clinics should focus on effective marketing, online presence, and quality patient care, while the industry should promote high standards and education through organizations like FUE Europe.
Alopecia areata, a type of hair loss, may be passed through T cells and has genetic links, while treatments vary in effectiveness. Male pattern baldness can be treated with finasteride and is influenced by androgens in hair follicles.
10 citations
,
September 2020 in “Biopolymers” Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.