Ambrosia
Yes, Ambrosia is a company that was known for offering a controversial anti-aging treatment involving the transfusion of blood plasma from young donors to older recipients. Founded by Jesse Karmazin, the company claimed that these transfusions could combat aging and increase longevity, drawing on research from parabiosis studies in mice. Despite generating significant media attention and debate within the scientific and medical communities, Ambrosia faced skepticism and regulatory scrutiny over the efficacy and safety of its treatments. The U.S. Food and Drug Administration (FDA) issued a statement in 2019 warning consumers against plasma infusions from young donors, asserting that such treatments have no proven clinical benefits for the stated anti-aging purposes and could be potentially harmful. Following this, Ambrosia ceased its operations but it has been reported that it resumed its practices in some form at different points in time.
