go to main content
Cosmetic Injectables
Neurotoxins preview article image

💉 What Are Neurotoxins (AKA Neuromodulators)?

Neuromodulators are injectable treatments that temporarily relax the facial muscles responsible for dynamic wrinkles—such as frown lines, crow’s feet, forehead lines, and more. They can also be used for preventative aging, facial balancing, jaw slimming, lip flips, and even reducing excessive sweating. Results typically appear within 3–7 days and last around 3–4 months.

💉 Why We Use Letybo

The world’s precision neurotoxin, trusted in over 31 million treatments.

  • First launched in South Korea in 2014–2015 as "Botulax"
  • Approved in over 50 countries before U.S. launch
  • FDA-approved in the U.S. in February 2024
  • Over 31 million vials used globally
  • Lasts up to 4 months with visible results in 2–3 days
  • Manufactured with double-chromatography purification for higher precision and lower diffusion
  • Designed to produce a highly pure 150 kDa neurotoxin protein with minimal accessory proteins
  • Lower immunogenicity risk (fewer neutralizing antibodies over time)

We chose Letybo as our signature neurotoxin because it's clinically proven to deliver precise, natural-looking results — without the frozen look. With effects lasting up to 4 months, and onset in just a few days, it’s the perfect fit for people who want reliability with elegance.