u/FormerFood2539

Started doing Botox for masseters. Been using 50 unit xeomin, and diluting with 1.25ml saline (I’m pretty sure I’m not over diluting it) but I keep ending up with more reconstituted Botox solution left over than I should have. Like if I give 40 units, I should have 10 left but I’ll have 20
What could I be doing wrong?