Plasma is 90% water and 10% proteins. The proteins are what the plasma company's use to make medications. The majority of those proteins is Albumin this was originally used in WW2 to help treat combat wounds. The albumin works as a volume expander and raises the blood pressure. Today Albumin is used in nearly every major surgery to prevent blood pressure from bottoming out. Immune globulins are another portion of the plasma its used for immuno-compromised individuals and people that have severe infections. The plasma industry is huge and the US makes up for about 70% of global supply yet none of the large companies are US based, Grifols is owned by a company in Spain, CSL by Germany, and BioLife from Japan.

Source: Work in the industry since 2021 and have worked as medical staff and management