Marnys® Vitamin B12 in a certified high-quality liquid format that also allows the rapid release of the active ingredient and its absorption in the body. Marnys® Liquid Vitamin B12 is a food supplement for all ages, during the growth and development of children and adolescents, for metabolic and neurological maintenance in adults, and in pregnant women during pregnancy. Directions for use: -0.5 ml a day, preferably in the morning.