Complete B Time Release tablets are designed to gradually release their contents over an 8-hour period for maximum bioavailability. The B vitamins work together to metabolize carbohydrates, fats, and proteins, which contributes to an increased energy production level in the body.* They also support a healthy nervous system and mood, and are essential for healthy skin, hair, and vision.* Water-soluble B vitamins are not stored in the body and must be replenished daily.