Older people tend to have higher biotin levels, which are weakly linked to certain blood components and negatively linked to triglycerides; biotin should be checked in patients with high triglycerides or medication-related skin issues, and only supplemented if deficient. Vitamin D and folate deficiencies are linked to specific skin conditions.
May 2023 in “Research Square (Research Square)” Wearing a hijab may lead to earlier hair loss due to vitamin D deficiency and scalp conditions.
April 2023 in “Dohuk medical journal” People with telogen effluvium often have much lower vitamin D levels than healthy individuals.
Low Vitamin D, Vitamin B12, and iron levels, as well as thyroid issues, are strongly linked to premature greying of hair, which also negatively affects quality of life.
November 2022 in “Journal of the Endocrine Society” Estrogen deficiency can reduce the enzyme activity needed to activate vitamin D.
August 2022 in “Indonesian Journal of Medical Chemistry and Bioinformatics” Certain herbal compounds might help prevent hair loss in menopausal women by activating Vitamin D receptors.
November 2021 in “Permskij medicinskij žurnal” Women with menstrual dysfunction often have deficiencies in magnesium, iron, and vitamin D.
September 2021 in “Journal of the Egyptian Women's Dermatologic Society (Print)” The study concluded that low iron and vitamin D levels in women might play a role in chronic hair loss, despite no significant difference between those with and without hair loss.
August 2021 in “Oxford University Press eBooks” The skin is a complex organ that protects the body, regulates temperature, and has roles in immunity, hormone function, and vitamin D metabolism.
January 2021 in “Turkiye Klinikleri Journal of Dermatology” Many young men with hair loss have low levels of vitamin D and B12.
December 2020 in “Rossijskij žurnal kožnyh i veneričeskih boleznej” People with severe alopecia areata often have lower vitamin D levels and may have other autoimmune or allergic conditions.
December 2020 in “Journal of Drugs in Dermatology” The document concludes that more research is needed to confirm if blood tests for things like iron and vitamin D are helpful for hair loss from Telogen effluvium.
July 2020 in “International journal of clinical & experimental dermatology” Hair loss in women aged 20-30 is often linked to deficiencies in Vitamin D, zinc, ferritin, and haemoglobin, as well as low SHBG levels in those with irregular periods.
December 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.
April 2019 in “Journal of Investigative Dermatology” New vitamin D3 forms need the vitamin D receptor to reduce fibrosis in human cells.
January 2019 in “Figshare” Redheaded people have higher levels of vitamin D precursor, suggesting their hair color may be an adaptation to low sunlight areas.
September 2018 in “Journal of the American Academy of Dermatology” Elderly patients with CCCA were all African American with low vitamin D, but no iron or zinc deficiencies, and no hormonal imbalances compared to younger patients.
January 2017 in “International Journal of Trichology” Vitamin D supplements might help reduce hair fall.
July 2016 in “Journal of Dermatology and Cosmetic” Many people with hair loss have low vitamin D levels.
January 2015 in “Indian Journal of Dermatology, Venereology and Leprology” The document concludes that various skin conditions have specific characteristics and treatments, and highlights the importance of vitamin D in managing these dermatological issues.
June 2014 in “British Journal of Dermatology” Eczema patients have a lower skin lipid to protein ratio, older and longer-staying hospital patients are more likely to get pressure ulcers, hair loss in AGA is linked to muscle degeneration, vitamin D deficiency is common in alopecia areata and linked to its severity, standard liver tests don't effectively detect fibrosis in psoriasis patients on methotrexate, and bullous pemphigoid patients have a higher death risk but combination therapy may reduce it.
December 2013 in “대한피부과학회지” Korean women with female pattern hair loss have higher levels of ferritin, testosterone, and vitamin D than average.
October 2011 in “Dermato-endocrinology” Hormones significantly affect skin health, with vitamin D playing a key role.
The document concludes that scientists created various steroids with different properties, including a more effective semi-synthetic vitamin D.
May 2007 in “Proceedings of the National Academy of Sciences of the United States of America” Alexander the Great's engineers built a causeway using a natural sand bridge, some tiger moths avoid bats by mimicking toxic relatives' sounds, early metabolism and RNA enzymes support the ancient RNA world theory, and vitamin D is crucial for hair growth and its absence can cause baldness.
April 2005 in “Journal of Investigative Dermatology” Vitamin D helps protect skin, PSORS1 gene's risk interval for psoriasis is expanded, hair follicles can be generated from mouse cells, and interferon-γ may cause pigmented skin lesions.
January 2002 in “China Surfactant Detergent & Cosmetics” Shampoo D is best for fixing perm-damaged hair.
November 2022 in “Journal of the Endocrine Society” Correcting vitamin D and progesterone deficiencies can significantly improve hair loss, acne, and BPH symptoms.
December 2021 in “International Journal of Research in Dermatology” Female pattern hair loss in Saudi women is linked to low iron and vitamin D levels.
December 2021 in “Journal of Cosmetic Dermatology” Thiol/disulfide balance is normal in male AGA patients but shifts towards oxidative stress with emotional stress and low vitamin D.