For consumers and vendors of PCL, our findings conflict with PCL's presumed biological inertness. In recent years, numerous accounts have quantified the release of nanoplastics (or been challenged as having released cyclic oligomers instead ) from plastic consumer goods, including disposable coffee cups, 164 tea bags, 165,166 baby bottles, 167 rubber teats, 168 and polyester textiles. As listed on an SDS of a PCL-based moldable plastic, 25,27,28 "The polymer is not bioavailable because of its molecular size." This statement and view of plastic require revision in the context of released nanoplastics, oligomers, and additives from plastic items and the mounting evidence supporting the environmental and human health impacts of plastics.