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

https://www.scribd.com/document/1027338542/Is-Botox-Safe-What-Certified-Clinics-Want-You-to-Know-145830

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