RocketCell™ S1 XF Supplement is a chemically defined, xeno-free replacement for conventional B27 supplements, engineered for the long-term survival, maturation, and functional maintenance of CNS neurons and a broad spectrum of other cell types. All components are of recombinant, synthetic origin, eliminating the batch-to-batch variability and safety concerns inherent in animal-derived additives.

This is the all-purpose formulation — the right choice when the primary goal is maximizing long-term cell viability without directing cell fate. Supplied as a 50X liquid concentrate for use with standard neurobasal or serum-free basal media.