We do not recommend wearing a used Belly Bandit® if you would like the exact same outcome as your first experience with the product. Anytime a band has been worn for an extended amount of time (and possibly washed) it will not have the same effectiveness on your body. They will never be as compressive as they are when first wearing them for the initial 6-10 weeks as directed. Depending on how it was cared for it may lose some elasticity.
We highly recommend never wearing a used one from a friend or purchased from a third party as those have most likely washed and treated for stains and creases, you will NOT be receiving the compression needed to get the job done!