Letybo (letibotulinumtoxinA-wlbg)
Letybo (letibotulinumtoxinA-wlbg) is an FDA-approved botulinum toxin type A injectable developed in South Korea and used to temporarily smooth moderate-to-severe frown lines between the eyebrows (glabellar lines). As a neuromodulator, Letybo works by blocking nerve signals to targeted facial muscles, allowing them to relax and reducing the repeated muscle contractions that cause dynamic wrinkles. The result is a smoother, more refreshed appearance while preserving natural facial expression when administered with precision.
Clinical studies and real-world use show that Letybo delivers reliable, consistent results comparable to other leading neuromodulators. Treatment is quick, minimally invasive, and requires little to no downtime, making it a popular option for patients seeking subtle but effective wrinkle reduction. Results typically begin to appear within a few days, reach full effect in about one to two weeks, and last approximately 3–4 months, depending on individual muscle activity and treatment plan.