That has been controversy for decades.
I believe that unless a person fully immerses themselves in a tank of sunscreen, they get a false sense of security because without the sense of burning, they stay out longer not realizing portions of unprotected scalp, eyelids, etc are getting blasted and it only takes one cell to mutate into a malignancy.
Full body immersing in a tank one time is not enough, periodic re-immersions are needed.
I remember the Coppertone girls on billboards when I was a kid in the 70s. Are you saying those girls were lying to me? If they were it’s okay, because they can do whatever they want. :-)