Resurge CD4 Supplement, without glucose and L-glutamine, is a chemically defined supplement formulation to complement a variety of base media. This supplement was developed using several host cell lines and in various culture systems, including shaker flasks and bench-scale bioreactors. Resurge CD4 Supplement, without glucose and L-glutamine, was developed for use in CHO mammalian culture systems and can be used either as a media supplement or a culture system feed.