<> Hell, even most underarm deodorants have a warning re: if you have kidney problems! <><
it’s antiperspirants with aluminum...
https://www.kidney.org/atoz/content/antiperspirants
“In reality, it’s almost impossible to absorb enough aluminum through the skin to harm the kidneys. “Unless you eat your stick or spray it into your mouth, your body can’t absorb that much aluminum,” says nephrologist Leslie Spry, MD, FACP, spokesperson for the National Kidney Foundation.”
What if you already have kidney problems, worse yet unaware of problem?
You do make a good point though and the warning
may just be there due to the legal issues.