Description Quest Stress B Complex is a quick acting medium potency formula providing a full spectrum of the B vitamins plus vitamin C to support energy levels, the nervous system and psychological function. Vitamins B1, niacin (B3), B6, B12, biotin and vitamin C contribute to normal functioning of the nervous system and normal psychological function. Vitamins B1, B2, niacin (B3), B6, pantothenic acid and vitamin C contribute to the reduction of tiredness and fatigue.
