What options do i have for loose skin under my chin?

Depends...: On whether the skin excess is just under the chin or throughout the neck and if it is associated with excess fat as well. Very rarely, the skin can be removed with a small transverse incision in the crease under the chin, but more often liposuction and/or a facelift (which always includes a necklift) is required. Good luck!

Lipo or excision: Your two options are liposuction if there is also some fat involved or surgical excision. If it is a very mild skin excess one of the many skin tightening treatments (laser, ultrasonic energy etc) may give some modest improvement.

It depends: It depends on if the loose skin is just under the chin or under the chin and neck. Sometimes, neck liposuction can be the best option or the full necklift procedure.