An infusion set configured to be secured to a skin surface for targeting a desired depth to deliver content to an upper skin surface, comprising a hub and a needle configured to travel during insertion as urged by a motion, wherein said needle is configured to assume a first angle relative to said skin surface in a free state, and wherein said needle is configured to return toward said first angle relative to said skin surface upon release of said motion, wherein said motion is at an angle relative to said skin surface that is different from said first angle of said needle.
