Botulinum toxin is a protein produced by a bacterium called clostridium botulinum. Botulinum toxins block the signals from the nerves to the muscles, which causes the muscles to relax temporarily. It have been used in aesthetic medicine to reduce the appearance of undesired expression lines.
Jaw slimming works by relaxing your bulky jaw (masseter) muscles with botulinum toxin injection into the muscle bulk. Once relaxed, your jaw muscles will start to lose its bulk over 3~4 weeks. You will have a sharper, slimmer and more feminine face.
The jaw slimming effect typically lasts between 3~6 months for most patients, and regular treatments for jaw slimming can lead to better and longer lasting results as the muscles become less active and smaller in size.