Samples of strongly dilute solid solutions of Ne inn-H2are tested under step-wise axial extension at temperatures1.8–4.2 K.A clearly manifested plasticization effect of neon impurities has been observed: smaller loads are required for crystals with a higher neon concentration to obtain the same strain at a fixed temperature. The ultimate strength of neon-doped crystals is noticeably lower than for pure samples of normal hydrogen. The creep of such solid solutions has also been studied. The decrease in the strength ofn-H2can be due to a specific mechanism of overcoming by dislocations of the barrier formed near impurities which probably form Van der Waals complexes with the crystal environment. ©1997 American Institute of Physics.