Brow wrinkles, sometimes called the “elevens” are often deep due to the strong muscles in the area. These wrinkles can make you look angry even when you aren’t. Filler injections in the brow with a needle are dangerous as the trochlear artery is nearby. Extremely safe and effective injections into the brow are possible using a cannula, which is a blunt ended steel catheter with a side injection port. This video demonstrates the use of a cannula for brow filler injections with Juvederm. Special training is required to use a cannula for filler injections. Look younger and lose the angry look at the same time. Botox or laser treatments can be added to enhance the wrinkle reduction effect.