When it comes to shopping green, it's always a good thing to look for products made from recycled materials. But when it comes to buying toilet paper, you may want to think twice about buying recycled. Recycled-content toilet paper is made from paper items like copy paper, junk mail and magazines that are shredded, pulped, de-inked and re-processed. But paper receipts -- also known as thermal receipts -- can sometimes end up in the recycling stream. These receipts are coated in the chemical bisphenol A (BPA), a known endocrine disrupter, which can end up in recycled toilet paper. To avoid BPA, look for unbleached, virgin product instead.