Neuro-Kit Tablet is a Vitamin B1, Vitamin B6 and Vitamin B12 Tablet. Vitamins B-1, B-6 and B-12 each fill many different roles that support your body’s metabolism and help it produce essential substances, such as neurotransmitters and red blood cells. Your body needs a regular supply of all three vitamins, but they’re available from a variety of foods so deficiencies are seldom a problem.