With vitamin B6, which contributes to the normal metabolism of carbohydrates and proteins (amino acids) and reduces tiredness and fatigue. With vitamin B12, which contributes to reducing tiredness and fatigue, as well as to normal energy-yielding metabolic processes. Easy-to-dose, 1 serving per package. Practical packaging. Without carbs Flavoured. Like all BioTech USA products, BCAA Shot consists of safe and carefully selected ingredients.