Aluminum: A Toxin in Vaccines for 90 Years Aluminum was first used in human vaccines in 1932 and was the only adjuvant used in licensed vaccines for approximately 70 years. This controversial compound is still used as an adjuvant in vaccines, however, what is its actual role? Aluminum is the third most abundant metal in the earth’s crust and is widely present in the environment—in plants, soil, water, air, food, and pharmaceuticals. It is present in an ionic form as Al3+. However, when aluminum is injected into our muscles in the formulation of a vaccine, it is nearly 100 percent absorbed. It then travels and crosses the blood-brain barrier and accumulates in our brain and other organs. https://www.zerohedge.com/medical/undeniable-toxic-ingredients-hpv-vaccines