June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
35 citations,
January 2013 in “International Journal of Trichology” Kids with early graying hair often have low levels of calcium, ferritin, and vitamin D3.
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.
7 citations,
January 2016 in “Hair therapy & transplantation” People with early graying hair often have lower levels of iron, ferritin, and calcium.
16 citations,
January 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Low levels of vitamin B12 and ferritin are linked to early hair graying.