GLYSET VITA (PENSET) 100 IU 3 ML is a pre-filled pen containing a clear, sterile solution of Insulin Aspart at a concentration of 100 International Units (IU) per milliliter, with a total volume of 3 milliliters. 1 Insulin Aspart is a rapid-acting human insulin analog used to improve blood sugar control in adults and children with diabetes mellitus. 2 Due to its faster onset of action compared to regular human insulin, it is typically administered subcutaneously just before meals or shortly after, helping to manage post-meal blood glucose spikes. 3 The penset delivery system is designed for convenient and accurate self-administration of the prescribed dose.