Stars kinda famously fuse elements up to iron as part of normal operations. And even if you exclude that, the entire solar system is leftovers from a previous star - all that is inside our current star too. Sure, much of it isn't at the surface, but there's not much of a reason to expect that literally zero of it randomly floats up among the lighter elements.
Have a reference tho: https://en.wikipedia.org/wiki/Solar_wind