"Deficiencies in these vitamins, while rare in normal Western diets, have been shown to cause premature graying, so if a vitamin deficiency is identified, correcting it could help prevent early graying." Can hair products like shampoo reverse gray
assuming IV-equivalent exposure from a subcutaneous dose is not justified by current evidence
Schneier M, Razdan S, Miller AM, Briceno ME, Barua S
Reduces Inflammation in the Scalp: Chronic inflammation around the follicle can lead to hair loss
It plays a central role in neutralizing free radicals, supporting liver detoxification, recycling vitamins C and E, and maintaining immune function
Transient scrotal hyperthermia affects human sperm DNA integrity, sperm apoptosis, and sperm protein expression