The term "11" lines is referring to the two vertical lines in-between the eyebrows. These lines are created by repeated contraction of the Glabellar muscle complex..ie frowning, scowling, etc.. As we mature these lines tend to become more pronounced, deeper, and apparent even when our face is at rest. I often liken this to folding a piece of paper. The more the paper is folded, the deeper the crease, and eventually the crease is permanent. This does not have to be the case with you.
Botox is the initial, and best treatment for not only prevention of "11" lines, but for creases at rest as well. Botox works by relaxing the muscle and decreasing the force of contraction. As the muscle relaxes, the skin stops creasing the the lines begin to diminish.
The muscle complex that creates the "11" lines is responsible for pulling the brow in and downward. Treating this area with Botox not only alleviates the dreaded "11's" but allows for lifting of the medial eyebrow, which translates into a refreshed, rested appearance.
Deep, static "11" lines may not completely resolve with Botox. If this is the case, there are adjunct therapies that can be used. I highly discourage the use of Dermal Filler to treat any lines in the area, and would recommend against it. This is a highly vascular zone, the risk of treatment with Dermal Fillers, far outweighs the benefit. Associated risk: tissue death, scarring, and blindness.
I utilize PDO threads for stubborn, deep set creases. I have found this to be the finest, safest treatment, in combination with Botox. PDO "twist" threads are placed directly into the crease to initiate collagen growth, which in turn corrects the deep crease. This treatment takes less than 5 minutes to perform, minimal to no discomfort, and no downtime. There is no risk of vascular occlusion and any of the nastiness that accompanies this, but all the benefit of a refreshed, rejuvenated brow line.
Turn that frown upside down, and end the "11's" today!!