Gibco Rat Fetal Neural Stem Cells are isolated and cryopreserved from the cortex of Sprague Dawley Rats at day E14 of gestation. A flexible, ready-to-use, and quality alternative to fresh cells, each vial contains 2 million cells per mL. Upon proliferation in StemPro NSC SFM, >75% of the cells retain their undifferentiated phenotype with the capability to differentiate into neurons, astrocytes, and oligodendrocytes.