Prolacta tests every shipment of milk for many factors, including but not limited to, the addition of water, adulteration (for example adding cow milk to the breastmilk), drugs of abuse, nicotine, marijuana, as well as for HIV, HTLV, HCV, HBV, TB, and syphilis. Prolacta is also the only organization that includes a safety combination of DNA matching of the qualified donor to the milk received.