You obviously don't want to apply Botox to the whole musclethe idea is simply to apply enough to the peak of where your tension is to relax it enough that the tension releases and your neck is elongated.Can you use any neurotoxin, or does it have to be Botox?According to Dr. Levine, you can use any neurotoxins for the procedure, including Daxxify, Xeomin and others.How many units do you need?You'll use about 30 to 50 units of Botox for each side, so in total you're looking at about 60-100...