It depends on your unique case. Generally speaking, the lower face (including the lip region, marionette lines, jawline, nasolabial folds, and oral commissures) requires between 5 and 11 ml. Thatu2019s the total number overall. Now, how much of that will go into the chin specifically will be determined by different factors. The size of your face, skin condition, and goals will all play a role. In other words, there is no way to calculate ahead of time the exact amount of liquid thatu2019s going to take to fix your chin. Your doctor will give you more info once they examine you.