MASON NATURAL. Support Wellness: Explore our full catalog of products including collagen, probiotics, melatonin, fish oil, ginkgo biloba, antioxidants, zinc, ginger and calcium. THE BEST VITAMINS FOR OVER 50 YEARS: For more than five decades, Mason Natural has produced quality vitamin supplements under cGMPs (current Good Manufacturing Practices) and adhering to US guidelines. All ingredients and finished goods are subjected to rigorous analytical testing, inspections and quality auditing. B Vitamins: B1 (Thiamine), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic acid), B6 (Pyridoxine), B7 (Biotin), B9 (Folic Acid), B12 (Cobalamin). Convert Food into fuel: Vitamin B-Complex plays a key role in converting food into fuel, but also involved in other metabolic functions in the human body such as substance conversions detoxification, nerve transmission, blood formation, protein and fat synthesis, maintenance of healthy blood sugar levels and appetite, muscle toning, etc.