As people age, it is typical for their hair color to alter. However, gray hair can start to grow out at practically any age. Even young adults and those in their 20s could notice a few white hairs. Millions of tiny sacs called hair follicles line the skin of the human body. The follicles produce melanin-containing color or pigment cells as well as hair. White hair develops as a result of the loss of pigment cells in hair follicles throughout time. Premature graying can be caused by any vitamin B-6, B-12, biotin, vitamin D, or vitamin E deficiency. Several deficiency studies on vitamin D-3, vitamin B-12, and copper and their relationship to graying hair are mentioned in a 2015 report in the journal Development. It reveals that dietary deficiencies have an impact on pigmentation and implies that vitamin supplementation can restore color. The International Journal of Trichology published a 2016 study that examined the causes of premature graying in young Indians under the age of 25. It was discovered that participants with premature hair graying frequently had low levels of serum ferritin, which stores iron in the body, vitamin B-12, and the good cholesterol HDL-C. Genetics: An article published in the Indian Journal of Dermatology, Venereology, and Leprology in 2013 found that a person’s tendency to prematurely gray their hair has a strong genetic component. Additionally, race and ethnicity have effects. According to the same 2013 study, premature graying can begin in white people as young as 20 years old, 25 years in Asian populations, and 30 years in African-American populations.