January 2022 in “Journal of Skin and Stem Cell” Trichodynia is a painful scalp condition needing targeted treatments beyond symptom management.
The supplement improved hair density and overall hair beauty.
April 2017 in “InTech eBooks” Many people with hair loss experience scalp pain known as trichodynia, but the causes are unclear and treatments vary.
Gushen Shengfa pills and Wuling capsules are more effective for hair growth and sleep quality than the control treatment.
Millet extract, wheat germ oil, L-cystine, and calcium pantothenate reduced hair loss and improved hair growth in women with diffuse alopecia.
9 citations
,
January 1975 in “Munich Personal RePEc Archive (Ludwig Maximilian University of Munich)” Rothmund-Thomson syndrome causes skin changes, hair loss, and slightly high lysine and cystine in urine.
15 citations
,
January 1981 in “Neonatology” Amino acid levels in milk increase with protein and align with key growth stages in Macropus eugenii.
346 citations
,
April 2020 in “Frontiers in Oncology” EMT and metabolic pathways help cancer cells resist treatment and spread.
38 citations
,
May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
7 citations
,
July 1975 in “Acta dermato-venereologica” A patient with Rothmund-Thomson syndrome showed skin changes, hair loss, and dental defects but no cataracts or skeletal issues.
6 citations
,
December 2019 in “International Journal of Cosmetic Science” White hair has weaker tryptophan fluorescence than other unpigmented fibers, possibly due to UV exposure or unknown substances.
August 2025 in “Journal of Cosmetic Dermatology” The dietary supplement AGA-P improves the effectiveness of hair loss treatments.
10 citations
,
November 2018 in “Genetics in medicine” Lack of cystatin M/E causes thin hair and dry skin.
100 citations
,
March 2006 in “Journal of biological chemistry/The Journal of biological chemistry” Cystatin M/E strongly inhibits cathepsin V and cathepsin L, important for skin formation.
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Not having enough cystatin M/E protein causes less hair growth and dry skin.
7 citations
,
October 1963 in “Textile Research Journal” Merino wool fibers change shape with moisture, while human hair shape stays the same.
15 citations
,
May 1966 in “The Journal of Urology” A woman developed severe bladder inflammation after cancer treatment with Cytoxan.
75 citations
,
March 2018 in “Molecules/Molecules online/Molecules annual” L-Cysteine may have health benefits, but its effectiveness is still debated due to limited clinical trial data.
98 citations
,
October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
59 citations
,
May 2017 in “Scientific reports” ZDHHC13 is important for normal liver function and metabolism, affecting mitochondrial activity.
42 citations
,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
2 citations
,
December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
1 citations
,
January 2010 in “Springer eBooks” Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.
January 2024 in “Seven Editora eBooks” Different techniques measure hair properties to ensure cosmetic products work.
July 2018 in “International journal of clinical & experimental dermatology” Eat a balanced diet for healthy hair; only use supplements if you have a proven nutrient deficiency.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
February 1938 in “Journal of the American Medical Association” Washing can prevent cancer from lubricating oils, extreme body temperatures need more study, Sulfomid is not recognized, no reliable diphtheria carrier treatment except surgery, eyelid injuries should heal before repair, heterophile antibody test is specific for mononucleosis, chlorine inhalations for colds are outdated, and wheat germ is safe.
March 1990 in “Journal of Dermatological Science”
11 citations
,
January 2004 in “Exogenous dermatology” Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.