January 2012 in “Vitamins & trace elements” Smoking and drinking can lower vitamin levels and potentially trigger early hair loss, but overall vitamin levels don't seem to affect hair loss duration.
33 citations,
September 2014 in “Reproductive Biology and Endocrinology” High afamin levels are linked to metabolic syndrome and may predict its development in women with insulin resistance.
21 citations,
January 1991 in “Dermatology” Men with male pattern hair loss have different levels of certain hormones compared to men without hair loss.
10 citations,
August 2014 in “Skin research and technology” Sleep, testosterone levels, and a specific enzyme activity affect skin oil production in women.
8 citations,
September 2018 in “Journal of Cosmetic Dermatology” Lower irisin levels in the blood may indicate more severe acne.
506 citations,
March 2005 in “The Journal of Clinical Endocrinology and Metabolism” Testosterone therapy improves physical function, strength, and body composition in older men with low testosterone levels.
77 citations,
November 2007 in “International Journal of Andrology” Testosterone with or without finasteride doesn't improve thinking skills in older men with low testosterone.
68 citations,
February 2019 in “Urology” Hormonal treatment in transgender women reduces semen quality, but stopping treatment may improve it.
65 citations,
October 1999 in “Journal of The American Academy of Dermatology” Finasteride effectively reduces hair loss by decreasing androgen levels.
62 citations,
January 2013 in “Skin Pharmacology and Physiology” Low iron and vitamin D levels are linked to hair loss in women.
44 citations,
April 2008 in “The Journal of Clinical Endocrinology & Metabolism” Women with PCOS have similar levels of certain proteins compared to women without PCOS, and these proteins don't independently cause PCOS.
29 citations,
March 2010 in “Journal of Endocrinological Investigation” Lipocalin-2 levels are higher in women with PCOS and may indicate insulin resistance.
22 citations,
October 2001 in “Biochemical Pharmacology” GI198745 is more potent and longer-lasting than finasteride, potentially better for treating hair loss.
18 citations,
September 2015 in “Clinical Endocrinology” Women with PCOS have higher levels of a certain growth factor, which can be reduced by taking metformin.
16 citations,
January 2000 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Antiandrogen drugs can reduce PSA levels in women with excess hair, suggesting PSA is a sign of male hormone activity in women.
10 citations,
May 2017 in “PLOS ONE” Men and premenopausal women in Korea show different patterns in iron and vitamin D levels, with no clear pattern for postmenopausal women.
10 citations,
February 2008 in “International Journal of Andrology” A combination of nanomilled oral testosterone and dutasteride normalized testosterone levels in men with low testosterone and is safe for short-term use.
9 citations,
May 2010 in “Gynecological Endocrinology” Young women with PCOS and no other heart risk factors have normal heart function.
9 citations,
November 2003 in “Journal of Investigative Dermatology” Low serum ferritin levels are linked to hair loss in women.
7 citations,
September 2020 in “Journal of Cosmetic Dermatology” Serum biomarkers like insulin-like growth factor-1 and vitamin D may help diagnose androgenetic alopecia.
6 citations,
September 2019 in “Journal of cosmetic dermatology” Lower melatonin levels are linked to more skin aging.
5 citations,
April 2021 in “Journal of Endocrinological Investigation” Higher DHT levels are linked to fewer hypogonadism symptoms in men with normal testosterone levels.
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.
2 citations,
April 2021 in “International Journal of Pharmaceutics” Serum formulations were better at delivering molecules to the hair bulb than nanoparticles.
2 citations,
April 2019 in “Acta medica Philippina/Acta Medica Philippina” People with alopecia areata often have lower vitamin D levels than healthy people.
2 citations,
January 2012 in “Hair therapy & transplantation” Low serum ferritin levels are not closely linked to telogen effluvium in women.
1 citations,
January 2022 Myo-inositol and D-chiro-inositol improve hormonal and physical symptoms in teenage girls with PCOS.
1 citations,
October 2020 in “Journal of Cosmetic Dermatology” Possible link between hair loss and metabolic syndrome, with RANTES as a potential clue.
1 citations,
November 2011 in “Dermatologica Sinica” Women using hair relaxers with alopecia had lower zinc levels, suggesting zinc deficiency might contribute to hair loss.
June 2024 in “Archives of dermatological research” Dietary supplements might help prevent post-COVID hair loss, but serum ferritin is not a reliable indicator.