34 citations
,
January 1943 in “Endocrinology” Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.
27 citations
,
October 1945 in “Endocrinology” Synthetic hormone treatment reduces melanin and hair growth in rats.
October 2019 in “Turkderm” Patients with pernio have lower vitamin B12 and ferritin levels than healthy people.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
20 citations
,
November 1943 in “Experimental Biology and Medicine” Inositol helped prevent and cure hair loss in rats.
17 citations
,
May 2018 in “Journal of Cosmetic Dermatology” Most women in the study lost hair due to chronic shedding, with stress and nutrient deficiencies being common factors.
December 2021 in “Vestnik Rossiĭskoĭ akademii meditsinskikh nauk / Rossiĭskaia akademiia meditsinskikh nauk” Personalized vitamin and trace element treatment improves hair density and reduces hair loss in men with early-stage androgenic alopecia.
1 citations
,
November 2015 in “Indian Journal of Clinical Biochemistry” The conference presented findings on how vitamin D levels, genetic factors, and lifestyle choices like smoking and yoga affect various health conditions and diseases.
1 citations
,
February 2026 in “Clinics in Dermatology” Vitamins help hair mainly if you have a deficiency; too much can cause hair loss.
February 2022 in “International journal of KIU” Certain genes and nutrients like vitamin D, zinc, and omega fatty acids affect COVID-19 severity and infection risk.
1 citations
,
March 2020 in “Functional foods in health and disease/Journal of functional foods in health & disease” OM-X® helped prevent negative effects of Vitamin C deficiency in mice, suggesting it could protect organs and regulate metabolism.
June 2021 in “International journal of cosmetics and dermatology” Vitamin C and E may help with certain skin and hair conditions, but more research is needed to confirm their effectiveness.
9 citations
,
September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
3 citations
,
February 2020 in “International journal of women’s dermatology” Most women with hair loss take more supplements than average, but these often don't help and can be risky and costly.
September 2024 in “Journal of Family Medicine and Primary Care” Primary health physicians in Saudi Arabia need better guidelines for treating hair loss with vitamins and minerals.
57 citations
,
February 2018 in “Journal of the American Academy of Dermatology” Biotin supplements are not proven to improve hair or nails and may interfere with medical tests.
28 citations
,
December 2019 in “Skin appendage disorders” Some medications might reverse gray hair, especially those that reduce inflammation or stimulate pigment production, and vitamin B might help.
5 citations
,
August 2015 in “Sultan Qaboos University medical journal” Vitamin B12 deficiency can cause skin darkening and other symptoms, which improve with B12 supplements.
3 citations
,
April 2015 in “Cleveland Clinic Journal of Medicine” The woman has scurvy and needs more vitamin C.
1 citations
,
June 2019 in “Current developments in nutrition” A patient with Ehlers-Danlos Syndrome improved after treatment for fat malabsorption and essential fatty acid deficiency.
7 citations
,
May 2016 in “SpringerPlus” Some breast cancer patients on hormone therapy experience hair loss, and treatments like certain topical inhibitors and supplements may help without harming their cancer prognosis.
2 citations
,
November 2024 in “Journal of Clinical Medicine” Vitamin D3 deficiency can worsen psoriasis by promoting Candida overgrowth.
October 2017 in “The American journal of gastroenterology” Three patients suffered severe health issues due to not getting enough vitamins and minerals after weight-loss surgery.
95 citations
,
February 2018 in “Dermatology and Therapy” Nutraceuticals may improve skin health and protect against aging, but more research is needed on their optimal use and possible health risks.
12 citations
,
December 1987 in “Cancer Chemotherapy and Pharmacology” Vitamin E in the diet might help protect against hair loss caused by the chemotherapy drug doxorubicin in rabbits.
7 citations
,
January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
1 citations
,
February 2023 in “Digestive diseases and sciences” Gastroparesis may cause hair loss due to micronutrient deficiencies, and multivitamins might help.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.