Is a pen worth it or am I thinking about this too much?

[FlowerFairy]

Just curious with the pens…isn’t there too much product left in the vial neck? I ran into that years ago with a family member’s prescription.

You can get washer type adaptors to stop that. It seems to mostly be a Novo or Savvio thing, but the washers will fit all pens and you can buy them from Peppy, Underground and some Etsy shops.