Insulin therapy is a cornerstone of treatment in
type 1 diabetes and, in many cases, also critical to
the management of type 2 diabetes. Despite evidence documenting the bene ts of insulin therapy in achieving glycemic control and reducing risk of long-term diabetes complications,1-4 insulin therapy remains underutilized,5,6 with only 29% of adults with diabetes in the United States using insulin.7 is underuse re ects numerous barriers
to treatment initiation as well as obstacles that hinder treatment adherence. Errors in insulin injection further curtail the ability of many patients to attain glycemic goals.