AbbVie's Allergan Aesthetics has secured European approval for Boey (trenibotulinumtoxinE), a rapid-onset, short-duration neurotoxin indicated for glabellar frown lines. Boey's differentiation lies in onset speed and duration profile—a distinct clinical positioning versus Botox (onset 3–7 days, duration 12+ weeks) and Dysport (faster onset, variable duration).