Have received multiple peptides from this company and all of them seem to be of high quality. All results posted on the site are verifiable. They could technically be sending the same samples over and over again I suppose but no way to prove or disprove that without getting your own test. Vials themselves come unlabeled but the boxes are labelled properly so you may have to do some labeling for your vials if you want that. Definitely a small price to pay for quality at this price.