Botox can help with a downturned mouth by relaxing muscles that pull the corners of the lips downward
https://www.scribd.com/document/936376296/Botox-vs-Dysport-vs-Xeomin-vs-Jeuveau-A-Comprehensive-Comparison-157072
Botox can help with a downturned mouth by relaxing muscles that pull the corners of the lips downward, softening the look.