@npmorgs: The masseter muscle is a large facial muscle located at the back of your jaw. Its primary function is to move your jaw up and down during chewing. Injecting neurotoxin, such as Botox into this muscle can help relieve tension and pain associated with clenching and stress. It also has the added bonus of facial slimming! Lets talk more! #tension #slim #masseterbotox #botox #jawline