Decay law of magnetic turbulence with helicity balanced by chiral fermions Conservation of the Hosking integral controls the decay: with magnetic helicity balanced by fermion chirality. The Hosking integral controls the decay of nonhelical magnetic turbulence. Here, the turbulence is fully helical, but balanced by fermion chirality. The Hosking integral controls the decay of nonhelical magnetic turbulence. Here, we adapt it to turbulence which is fully helical but balanced by fermion chirality. The Hosking integral controls the decay of nonhelical magnetic turbulence. Here, it is adapted it to turbulence that is fully helical but balanced by fermion chirality.