Yes, Some Vaccines Contain Aluminum. That’s a Good Thing. NYT Par : Teddy Rosenbluth 24 janvier 2025 à 11:01 R.F.K. Jr. and others have blamed the ingredient for allergies and other illnesses. Scientists say it actually bolsters the immune response. © Mary Conlon/Associated PressAluminum salts, a more soluble form of the metal, have been repeatedly evaluated in clinical trials and administered in billions of vaccine shots over several decades.