Which best b12 supplement helps to fight hair problems? B12 is a form of vitamin required by the human body. The main function of this vitamin is to improve hair quality. People who want long and strong hair can take these supplements on a regular basis. The Best B12 Supplement introduced by Arechar Nutra is Vitagoli. Visit: https://www.arecharnutra.com/shop/gummies-for-hair-skin-and-nails