Webber Naturals vitamin B12 time release tablet provide excellent absorption and optimum amounts of B12 released gradually in the stomach and small intestine. B12 is essential for healthy red blood cells and for utilization of iron. It is also a key nutrient in the formation of myelin, a fatty substance that protects nerves, and for production of acetylcholine, a neurotransmitter that supports memory and learning. B12 helps form DNA and RNA, the body's genetic material, as well as participating in cellular metabolic reactions. Vitamin B12 also plays a critical role in energy metabolism, immunity, and nervous system function. This 1200 mcg tablets comes in 80 per pack.