I had gynnocomastia . and now i have excess skin around my chest what is the best possible way to make the skin tighter without excision .

Exercise: Excercise. This will help some but you will probably need surgery.

Difficult Situation…: Unfortunately, there may be no good way to “make the skin tighter”. Sometimes, especially after significant weight gain/loss, some skin excision may be necessary during or after treatment of gynecomastia. You may benefit from consultation with board-certified plastic surgeons. Best wishes.