How about relevant details?
Like what it might do to a person if injected into them.
It really depends on the quantity. The Pfizer vaccine has 0.3 ml per dose. Assuming the hoax story is 1/10th of that is graphene oxide, it is going to give the person a bad headache at worst.
This is like you eating almonds.
Almonds contain cyanide.
But in such microscopic quantities that you’d need to eat kilos of almonds to get sick