Hair germ cells differ from epidermal cells in keratin expression, and specific keratins form after hair differentiation.
Long-term use of seizure medications can disrupt calcium metabolism, but this can be treated with vitamin D or UV light and does not affect seizure control.
January 2012 in “Sichuan Medical Journal” 2% minoxidil effectively increases hair count in women with androgenetic alopecia without severe side effects.
January 2009 in “Hair transplant forum international” Dr. Rodney Sinclair uses a detailed grading system to diagnose female pattern hair loss, recommends daily spironolactone and minoxidil for treatment, and believes genetics play a role in the condition.
105 citations
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March 2014 in “British journal of dermatology/British journal of dermatology, Supplement” Alopecia areata patients often have low vitamin D levels, suggesting they might benefit from vitamin D supplements.
92 citations
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January 2013 in “Dermatology” Vitiligo patients often have other health issues, especially thyroid disorders.
57 citations
,
August 1997 in “Pediatrics International” VDDR I and II are genetic disorders affecting vitamin D use, causing rickets, with VDDR I treatable by vitamin D supplements and VDDR II needing high doses and calcium.
54 citations
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January 2012 in “Vitamins & Trace Elements” People with Alopecia Areata have lower vitamin D levels.
30 citations
,
January 2005 in “Elsevier eBooks” Vitamin D affects skin and hair by influencing cell behavior and melanin production.
28 citations
,
April 2017 in “Journal of cosmetic dermatology” Low vitamin D can worsen pediatric alopecia areata.
5 citations
,
September 2021 in “Journal of cosmetic dermatology” People with alopecia areata often have abnormal thyroid hormones, thyroid antibodies, antinuclear antibodies, low vitamin D, and high C-reactive protein levels.
More research is needed to confirm if vitamin D helps improve pregnancy rates in women with hyperandrogenic PCOS.
July 2023 in “Media Dermato Venereologica Indonesiana” Vitamin D supplements should be used cautiously in sarcoidosis patients, with regular monitoring to avoid high calcium levels.
September 2021 in “Journal of advances in medicine and medical research” Low Vitamin D levels are linked to female hair loss.
237 citations
,
December 2001 in “Urology” Blocking the enzyme 5α-reductase can shrink the prostate and help treat enlarged prostate issues.
198 citations
,
January 1998 in “Dermatology” The human sebocyte culture model has improved understanding of oily skin and acne, and how they can be treated.
100 citations
,
September 2017 in “Molecular and Cellular Endocrinology” Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.
65 citations
,
October 1999 in “Journal of The American Academy of Dermatology” Finasteride effectively reduces hair loss by decreasing androgen levels.
47 citations
,
June 2015 in “Contact Dermatitis” A standardized patch test for hair cosmetics is needed in Europe to prevent allergies, especially for hairdressers.
28 citations
,
June 2000 in “PubMed” Androgenetic alopecia is common hair loss due to genetics and DHT.
24 citations
,
January 2015 in “Annals of Dermatology” Herbal extracts may help hair grow and could be an alternative to synthetic hair loss treatments.
8 citations
,
January 2015 in “PubMed” Phyllanthus niruri extract may help treat hair loss by promoting hair growth and blocking a hair loss-related enzyme.
7 citations
,
January 2018 in “Indian Journal of Pharmacology” Algerian Carthamus caeruleus L plant has anti-inflammatory properties, heals wounds effectively, and may help with hair growth.
6 citations
,
October 2000 in “International Journal of Dermatology” Preventing hair loss is more effective than regrowth; oral finasteride is a realistic option.
4 citations
,
April 2001 in “Experimental Dermatology” Using single dermal papillae is unreliable for analyzing androgen metabolism in hair follicles.
1 citations
,
August 2016 in “Hanbang an'i'bi'in'hu pibu'gwa haghoeji” YangHyulEum Gami-Bang extract may help treat hair loss.
1 citations
,
August 2002 in “Zeitschrift für Hautkrankheiten” Male androgenetic alopecia involves hair follicle miniaturization due to DHT, with potential treatments using inhibitors and blockers.
February 2026 in “PubMed” Most hair dye allergies are caused by para-phenylenediamine (PPD), and safer hair dye options are needed.
September 2025 in “Journal of the American Academy of Dermatology” Both 2.5 mg and 5 mg doses of oral minoxidil are effective for hair regrowth in men with hair loss.
Genetic analysis of rabbits identified key genes for traits like coat color, body size, and fertility.