You will draw up the prescribed amount with the provided insulin needle and syringe, then inject subcutaneously. The recommended dose of general health is to start out with 0.1ml and, as desired, slowly ramp up to 0.5ml (100mg) up to 3x per week. Each 0.1ml (10 units) of solution equals 20mg of NAD+. As such, 0.1ml (10 Units) = 20mg NAD+, 0.25ml (25 Units) = 50mg of NAD+, and 0.5ml (50 Units) = 100mg of NAD+.