It really depends upon which injectable you're talking...

It really depends upon which injectable you're talking about. BOTOX Cosmetic can easily be injected by an experience injector with very little risk for bruising and other side effects. As such, it is very common for me to inject my patients right before a major event. Fillers are a different story. These tend to be associated with varying degrees of swelling and bruising and so should be injected at least 2-3 weeks before an event. In addition, once in a while it is necessary to touchup an uneven result and so a little extra time to get that perfect result before that big event can be very helpful!