What is the benefit of carrier vs. carrier free cytokines?

Our cytokines and growth factors are lyophilized and supplied either with 20ug BSA per 1ug of cytokine (with carrier) or without added protein (carrier free). BSA minimizes adsorption to surfaces and maximizes recovery upon reconstitution. We recommend using the "with carrier" formulation as long as the addition of BSA will not negatively affect your experiment.

Last updated: October 6, 2025