I've lost about 75lbs+ of fat, and have a small amount of gynocomastia. After having kept the weight off for over 3 years most of my loose skin has shrunk back, but I still have a bit. It's like wearing a skin suit a size too big. My current efforts are focused on adding muscle to fill out the saggy skin. I think I'll be able to build my pecs enough to use the gynocomastia to just make it look like I have bigger pecs. That's the hope anyway.