Jawline Botox depends on masseter muscle size
Jaw line Botox is injected into the Masseter muscle, which is used to close the mouth and chew. The technique is probably most popular in the Asian community. A bulky masseter muscle makes the lower face look full and heavy. Just a small amount of Botox in this muscle on both sides will cause loss of mass in this muscle and help improve the shape of the lower face. The dose used should not be so great that it interferes with the actual function of the muscle.
One can always do more Botox. Over doing it with too much can lead to a very unpleasant several month interlude waiting for excessive treatment to wear off. Therefore, it is much better to be safe and do less. I typically start with 8 units of Botox per side. I treat the masseter muscle where it inserts into the Jaw bone. A big part of the treatment results comes from muscle atrophy. So treatment effects should not be judged until about a month after treatment. The effects last a little longer than forehead Botox as the jaw line volume takes time to return. 4 to 5 months is realistic before retreatment.
It depends on your masseter muscles
Botox for the masseter achieves temporary results that last a few months. The exact dosing for your masseter reduction can be determined in consultation with your cosmetic physician, as it is important to see how strong your muscles are with an in-person evaluation. However, to give you an idea, you may require approximately 30 units of Botox per side. Multiply 30 with the average cost of a Botox unit, which would range from $300-$400.
No significant jawline definition from Botox
I reiterate one of my colleagues' statements that you should not expect much jawline definition from Botox treatments. Loss of jawline definition in the aging process is not caused by muscle pull. It is caused by gravity's effect on the soft tissues of your cheeks (jowling) and neck. Regardless, the effects of Botox are never permanent, so avoid door number 2. Good luck!
Masseter Botox injections
Depending on the physical exam, I normally use 15 - 35 units of Botox on each side. It is easy to add more if the desired result is not achieved. In addition, I tend to use weaker doses when patients return because they start to see the effects wear off.
Everyone is different, so everyone requires different amounts of Botox. Without examining you or seeing pictures, it is hard for us to give you any advice. One thing I can tell you is that you should not expect miracles for jawline definition with Botox. Good luck.
Botox to slim and contour the jawline
Botox can be used to contour and slim the jawline on many clients. The amount of units needed depends on the size and strength of your masseter (jaw) muscle. On average we are using 30 units per side for this treatment.
Reducing the bulk of the Masseter muscle helps to change the shape of the face from a square on to a round one. Typically 20-25 units per side is what is commonly done
Botox to contour the jawline
The jawline is composed of 3 separate tissues: skin, muscle, and fat. Botox will have no effect on the skin or fat in the jawline which would require a facelift or neck lift. Botox can be injected into the platysma muscle when there are bands present in the front portion of the neck, but the amount of Botox it takes can be quite cost prohibitive. Since the platysma muscle is also quite wide it will take a significant amount of Botox to help the lines go away and it will not last very long. In our practice, the best uses for Botox are the corrugator lines between the eyebrows, the horizontal lines of the forehead, and the crows feet.
Botox and jawline contouring
Botox can work very well on the neck and some contours but the amount and effect is different and is performed on a case by case basis. I often use a combination of Botox and Restylane to best contour the jaw and give a clean, younger looking jawline. You need to find an extremely experienced injector to do this technique.
Botox to masseter muscle for jawline slimming
There is no set dose for slimming the jaw/face with masseteric Botox injections. I choose the dose depending on the muscle mass and patient desires. A general range is 15-40 units per side.