Human Perineurial Cells (HPC) from Creative Bioarray Research Laboratories are isolated from human spinal nerves. HPNC are cryopreserved at passage one and delivered frozen. Each vial contains >5 x 10^5 cells in 1 ml volume. HPNC are characterized by immunofluorescent method with antibodies to Vimentin, S100, GFAP and CD90. HPNC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi. HPNC are guaranteed to further expand for 15 population doublings in the conditions provided by Creative Bioarray.