A 2022 systematic review found 102 trials studying aluminium adjuvants. Only 2 compared aluminium alone against an inert placebo. Together they enrolled 84 subjects.

The phrase "no evidence of harm" can mean four very different things. Only one of them is reassuring.

If you need to vaccinate 64,000 people to prevent one death, but your trial only has 341 people, "no evidence of harm" means almost nothing.

Take nobody's word for it. This blog is about reading vaccine safety evidence yourself.