Fiasp FlexTouch Pens (100 units/mL) is a fast-acting type of insulin (insulin aspart) used by adults and children with type 1 or type 2 diabetes. It effectively manages blood glucose (sugar) levels and avoids developing any severe complications.The Fiasp formulation contains Vitamin B3 (niacinamide) and L-arginine to stabilize the formulation. The