Anti-wrinkle injections will stop the muscles under your brow from contracting, which is the cause of the lines in your forehead. Two weeks after your initial injection, you can expect fine lines and wrinkles to disappear for 3-4 months. After that, you will need another injection. A brow lift, on the other hand, is a permanent surgical procedure. The effects of a brow lift will last for decades, rather than months. Since it’s surgical, a brow lift also gives Dr. Cohen much more control. With a brow lift, he can permanently alter the shape and symmetry of your eyebrows with great precision. He can also reduce the size of your forehead. The best choice depends entirely on the look you want to achieve. If you want a quick fix that will soften lines and wrinkles, then an anti-wrinkle injection may be a great fit for you. But, if you want to fix a heavily sagging brow and very deep wrinkles, a brow lift may be your only option. If you have more questions on the differences, you should bring it up to Dr. Cohen during your free consultation.