Vitamin B-complexes are often called “stress formulas” for their ability to support the vital energy systems of the body. B vitamins work synergistically help the body use its carbs, fats and proteins in the most efficient and effective way possible and boost energy production. We have added L-theanine to complement our full spectrum B-Complex. L-theanine is a powerful amino acid derived naturally from green tea plant (camellia sinensis) that promotes a restful, relaxed state without diminishing alertness so that you can stay focused and productive. So sit back, relax and let Orange Naturals B-Complex do the work!