The corrugator and frontalis muscles are closely intertwined. If Botox spreads into the frontalis at key points, you risk asymmetrical or droopy eyebrows. This can cause one brow to lift more than the othe, or a tired, uneven look at rest. 💉 Understanding the anatomy and injection points is critical to keep your results natural and balanced. If you want to master facial anatomy, don't forget to attend my webinar on the 4th September, comment ANATOMY and I will send you the details. | Dr Tim Pea