A Study to Assess the Adverse Events of Intramuscular Injections of AGN-151586 and OnabotulinumtoxinA in Adult Participants for the Change of Glabellar Lines (GL)

Inclusion Criteria: * Has moderate or severe glabellar lines (GL) at maximum frown as assessed by both the investigator and participant using the Facial Wrinkle Scale (FWS). * Must be in good health as per investigator's judgment based on medical history, physical examination, vital sign measurements, 12-lead ECG parameters, clinical laboratory evaluations, and neurological assessment. Exclusion Criteria: * Active infection or dermatological condition at the treatment injection sites. * History of immunization to any botulinum neurotoxin serotype or hypersensitivity to any botulinum neurotoxin serotype or any other constituents of the study drug or its excipients, and/or other products in the same class.