Botox can ease nasal tip droop when smiling by relaxing the depressor septi muscle

https://www.scribd.com/document/1027456623/Botox-Cosmetic-A-Beginner-s-Guide-to-Treatment-Options-146439

Botox can ease nasal tip droop when smiling by relaxing the depressor septi muscle, subtly improving tip position for a balanced, natural facial expression.