44 citations
,
May 2014 in “The American Surgeon” Low zinc and iron levels can predict hair loss after sleeve gastrectomy in women.
71 citations
,
January 2016 in “International Journal of Trichology” Biotin deficiency is not a major cause of hair loss in women, so biotin supplements are not likely to be an effective hair loss treatment.
1 citations
,
August 2023 in “Cutis” Low ferritin levels can indicate iron deficiency as a cause of hair loss.
1 citations
,
January 2021 in “Journal of Dhaka Medical College” Lower iron levels are linked to longer hair loss.
1 citations
,
October 2020 in “IP Indian journal of clinical and experimental dermatology” Low serum ferritin levels are significantly linked to diffuse hair loss.
1 citations
,
September 2021 in “Mağallaẗ Kulliyyaẗ al-ṭibb Baġdād” Low vitamin D levels may cause hair loss in women.
October 2025 in “Medical Journal of Babylon” Higher testosterone and lower Vitamin D levels are linked to hair loss in female COVID-19 patients.
January 2019 in “Menoufia Medical Journal” Lower vitamin D levels may contribute to female hair loss.
April 2019 in “Journal of Investigative Dermatology” Low-level laser therapy helps hair growth and reduces hair loss with few side effects.
Low vitamin D3 and ferritin levels may cause hair loss in pregnant women.
June 2015 in “Majallah-i 'ilmī-i dānishgāh-i 'ulūm-i pizishkī va khadamāt-i bihdāshtī darmānī-i Hamadān” Low vitamin D levels are linked to hair loss in women.
11 citations
,
January 2020 in “Skin appendage disorders” Low-level laser therapy safely and effectively improves hair growth and coverage for male and female pattern hair loss.
6 citations
,
September 2022 in “Journal of Clinical Medicine” The treatment might help COVID-19 related hair loss, but more research is needed.
January 2024 in “İstanbul Kuzey Klinikleri” Low ferritin levels are linked to increased hair loss; no link found between vitamin B12, TSH levels, and hair loss.
September 2019 in “Journal of Investigative Dermatology” People with pattern hair loss have higher polyamine levels in the top of their head compared to the back.
July 2016 in “Journal of Dermatology and Cosmetic” Many people with hair loss have low vitamin D levels.
32 citations
,
September 2016 in “Dermatologic Surgery” The evidence for using Low-Level Laser Therapy for hair loss is limited and more thorough research is needed.
9 citations
,
November 2021 in “PubMed” FDA-approved low-level light/laser therapy devices can significantly increase hair density in people with pattern hair loss.
September 2024 in “Research Square (Research Square)” Low-level laser therapy effectively treats hair loss and promotes hair growth.
January 2018 in “Archives of dermatology and skin care” Low level laser therapy may promote hair growth for patterned hair loss, but more research is needed.
13 citations
,
March 2023 in “International Journal of Molecular Sciences” Lower Gas6 and sAxl levels are linked to hair loss in COVID-19 survivors.
November 2025 in “Khalij-Libya Journal of Dental and Medical Research” Hair loss is linked to low levels of zinc, vitamin D, and ferritin.
21 citations
,
November 2017 in “Archives of Dermatological Research” Higher enzyme levels found in women with hair loss, suggesting hormone imbalance.
6 citations
,
January 2020 in “Postepy Dermatologii I Alergologii” Check and treat low iron and vitamin D levels in people with hair loss.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
January 2024 in “The Egyptian Journal of Hospital Medicine (Print)” Zinc levels are not directly linked to pattern hair loss.
March 2022 in “IP Indian journal of clinical and experimental dermatology” Low ferritin and cobalamin levels are better indicators of chronic hair loss in reproductive-age women than hemoglobin levels.
Finasteride and low-level laser therapy are similarly effective for frontal pattern hair loss.
17 citations
,
January 2013 in “Indian Journal of Pharmacology” High levels of the seizure medication sodium valproate can cause hair loss.
5 citations
,
February 2016 in “Genetic Testing and Molecular Biomarkers” Hair loss is significantly linked to lower levels of certain genes in hair follicles.