Humapen Savvio comes in six  different colours so one can pick and chose...Cartridges are changed and the pen is reused.

Clear insulins available in cartridges are: Humalog, Humulin S (short acting human insulin), and Abasaglar (Glargine)

Cloudy insulins are Humalog Mix 25, Humalog Mix 50, Humulin I  and Humulin M3.