How It Works: Vitamin B12 has the largest and most complex chemical structure of all the vitamins. Most of its functions are related to its co-enzyme activity, such as enzymes needed for the production of DNA during cell division.* It is required for the synthesis of the amino acid methionine, from homocysteine, which helps to maintain already healthy serum homocysteine levels.* B12 is also necessary for the maintenance of a healthy nervous system.* Protocol For Life Balance is an A-rated GMP manufacturer of premium dietary supplements created for healthcare practitioners. Our product line is comprised of effective, science-based formulations intended to address common nutrient deficiencies and support healthy physiological function. These formulations are based on the latest advances in nutritional science and incorporate trademarked ingredients of the highest quality. At Protocol For Life Balance our mission is to provide high-quality, affordable solutions that empower people to lead healthy and happy lives. Our extensive line of premium health products use well researched ingredients that meet the highest quality standards. Every Protocol For Life Balance product must pass a rigorous internal review to ensure relevance, efficacy, and quality.