Under normal circumstances, loose skin will shrink as you drop the pounds but in cases of large weight loss it is harder to tighten skin. With a sensible diet and exercise plan, and realistic expectations, you can help your skin to adjust to your new body shape.nderstanding Your Skin. If you pinch your skin, it immediately snaps back into place when you release your grip. Healthy skin is naturally elastic and will change shape to hold the form of the tissues beneath. However, any elastic material has its limits.