evidence: The level of aluminum in childhood vaccines is safe, even for babies [...] Factually inaccurate: Contrary to what the claim suggested, the amount of aluminum in childhood vaccines is below the safe limit for injectable biological products specified in the Code of Federal Regulations. An analysis of the pharmacokinetics of aluminum showed that the amount of aluminum from vaccines that enters the blood of babies isn’t dangerous. [...] According to the post, most vaccines contain "225 micrograms to 850 micrograms" of aluminum, while "per FDA guidelines, the max amount of aluminum anyone can safely handle is 4 micrograms per kilo". This means a child would need to weigh at least 56 kilograms to be able to safely receive a shot with 225 micrograms of aluminum (225 micrograms divided by four), and an unrealistic 212 kilograms to safely receive a shot with 850 micrograms of aluminum.