Quantum Gravity Theory - U v I R Mixing in String Theory

String theory holds that all particles are close up little vibrating strings. Standard model particles like photons and electrons are low energy vibration modes of the fundamental string. But the string can wiggle more energetically as well, giving rise to an infinite spectrum of string states with even higher energies. In this context, the hierarchy problem asks why corrections from the string states don't inflate the higs if there's nothing like super symmetry to protect it?