11 citations
,
January 1987 in “Electrophoresis” Keratin proteins are consistent across different hair types from the same person.
26 citations
,
October 2007 in “Experimental Dermatology” L-Carnitine-L-tartrate may help hair grow and prevent hair loss.
7 citations
,
June 2017 in “Omics” The study developed a method to analyze ancient hair proteins using very small samples.
November 2023 in “Research Square (Research Square)” NIR-II imaging effectively tracked stem cells that helped repair facial nerve defects in rats.
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.
159 citations
,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
26 citations
,
January 2019 in “Experimental Dermatology” Researchers created early-stage hair-like structures from skin cells, showing how these cells can self-organize, but more is needed for complete hair growth.
11 citations
,
February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
73 citations
,
October 2003 in “Journal of Pharmacology and Experimental Therapeutics” Hair color loss can indicate the effectiveness of a drug targeting the KIT protein in mice and humans.
70 citations
,
April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
9 citations
,
March 2016 in “Natural Product Research” Some flavonoids may help with hair growth by affecting blood vessel function in hair follicles.
3 citations
,
April 2023 in “Journal of Veterinary Internal Medicine” Dogs with epilepsy have different hair mineral levels than healthy dogs, possibly due to epilepsy or its treatment.
5 citations
,
November 2020 in “Frontiers in Cell and Developmental Biology” The "Two-Cell Assemblage" assay is a new, simple method to identify substances that may promote hair growth.
205 citations
,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
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.
37 citations
,
March 2014 in “Journal of Trace Elements in Medicine and Biology” Lower hair zinc and copper levels found in Turkish males with hair loss; higher BMI linked to less hair zinc.
19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
21 citations
,
May 2018 in “Journal of Cosmetic Dermatology” Costunolide helps human hair cells grow and can stimulate hair growth in mice.
1 citations
,
April 2017 in “Journal of Investigative Dermatology” Cilostazol may help hair grow and could be a new treatment for hair loss.
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.
53 citations
,
July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.
11 citations
,
February 2019 in “Stem cells international” Skin-derived stem cells grow faster and are easier to obtain than hair follicle stem cells, but both can become various cell types.
7 citations
,
January 2018 in “PubMed” Low levels of iron, copper, and calcium may cause early hair graying.
1 citations
,
November 2025 in “Stem Cell Research & Therapy” Immortalized hair follicle cells could be useful for regenerative medicine and treating inflammation and oxidative stress.
January 2026 in “Journal of Radiation Research” 53BP1 focus analysis in hair cells can help estimate radiation doses.
December 2025 in “Rapid Communications in Mass Spectrometry” Pepsin digestion improves accuracy in analyzing proteins in human hair.
January 2024 in “Biological trace element research” Isotretinoin affects trace element levels and requires monitoring of liver and kidney functions.