Bloomberg writes, “Allergan Plc has gone to great lengths to guard the secret of how it makes Botox, its $2 billion-a-year wrinkle treatment. Metal-enclosed workstations, security guards and private jets are part of the effort.”

Director Eldora L. Ellison, Ph.D. was quoted in their article, “Allergan Fights to Keep Botox-Making Process Secret From Rival.” Ellison said companies will sometimes file applications on the process and disclose it broadly, but the fine-tuning tweaks that really matter are kept secret.