22 citations
,
September 2008 in “Brain & development” Biotin supplements increased biotin levels but did not significantly prevent hair loss in rats on valproic acid.
21 citations
,
October 2011 in “British Journal of Dermatology” Testosterone therapy helped 63% of androgen-deficient women grow scalp hair, but more research is needed.
16 citations
,
May 2009 in “Journal of child neurology” Valproic acid does not change biotinidase enzyme activity in children's blood.
10 citations
,
January 2012 in “International Journal of Trichology” The study found no link between anxiety, vitamin B12, folate, TSH, ferritin, zinc levels, and trichodynia in telogen alopecia patients.
9 citations
,
January 2007 in “Endocrine Practice” A woman's male-like symptoms and high testosterone were due to ovarian hilus-cell hyperplasia, which improved after surgery.
6 citations
,
May 2016 in “Urolithiasis” Balding and low testosterone increase risk of urinary stones.
4 citations
,
January 2020 in “International Journal of Trichology” Too much epidermal growth factor can cause hair loss.
4 citations
,
February 2019 in “Revista da Associação Médica Brasileira” FOLFOX6 chemotherapy effectively reduces VEGF levels and improves quality of life in advanced colorectal cancer patients.
4 citations
,
January 2015 in “Journal of microbial & biochemical technology” Biotin helps regulate proteins in the blood, which may explain its role in hair growth.
3 citations
,
June 2019 in “Journal of Bangladesh Society of Physiologist” People with hair loss often have lower levels of zinc and copper in their blood.
2 citations
,
October 2018 in “The journal of pediatrics/The Journal of pediatrics” The document concludes that specific hair and blood vessel abnormalities in infants with seizures and developmental issues may indicate Menkes disease, which lacks a cure and is often fatal by age 3.
2 citations
,
June 2018 in “Sudan journal of medical sciences” Low vitamin D levels can cause hair loss and supplements may improve it.
2 citations
,
March 2018 in “Clinical Nutrition ESPEN” Low vitamin D levels are linked to symptoms like muscle cramps, fatigue, and hair loss.
1 citations
,
April 2021 in “International Journal of Research in Dermatology” Low iron and vitamin B12 levels are common in women with chronic hair loss, while low vitamin D is less common.
January 2026 in “Mansoura Medical Journal” Serum ferritin can help diagnose Telogen Effluvium.
December 2025 in “Cureus” Low serum ferritin is linked to hair loss in women.
December 2025 in “Obesity Surgery” One-anastomosis gastric bypass leads to lower zinc levels and more symptoms than sleeve gastrectomy.
September 2025 in “International Journal for Research in Applied Science and Engineering Technology” Guava leaf extracts are beneficial for skin, hair, and oral care.
June 2025 in “Public Health of Indonesia” Low levels of zinc, calcium, vitamin D, and ferritin may be linked to hair loss in women.
December 2024 in “Asian Journal of Medical Sciences” Low iron levels may be linked to hair loss in women with chronic telogen effluvium.
November 2023 in “Clinical, Cosmetic and Investigational Dermatology” Saw palmetto extract reduced hair loss and improved hair growth in people with hair thinning.
July 2022 in “Dermatology Reports” Low zinc levels might be linked to worse outcomes in various skin disorders.
July 2022 in “Journal of Dermatology and Dermatologic Surgery” People with chronic hair loss often have lower Vitamin B12 levels.
January 2021 in “Turkiye Klinikleri Journal of Dermatology” Women with a certain type of hair loss had lower levels of a hormone called prolactin compared to healthy women.
December 2020 in “Our Dermatology Online” Skin biopsies are recommended for confirming alopecia diagnosis due to variability in clinical assessments; the link between vitamin D levels and alopecia is unclear.
September 2020 in “International Journal of Research in Medical Sciences” People with alopecia areata had lower vitamin D levels, but these levels did not relate to how severe their condition was.
July 2020 in “مجله كليه طب الكندي” Low iron levels and obesity are linked to chronic hair loss in women.
April 2019 in “Journal of the Endocrine Society” An over-the-counter vitamin/mineral supplement improved hair loss and blood sugar control in a woman with non-classic 11-hydroxylase deficiency.
April 2018 in “Assiut Veterinary Medical Journal/Maǧallaẗ Asyūṭ al-ṭibiyyaẗ al-baytariyyaẗ” Zinc levels in body fluids can help diagnose zinc deficiency in lambs, with fecal zinc as an early indicator.
January 2018 in “Hair therapy & transplantation” Hair health can indicate mental and general health.