Phosphate buffered saline (PBS) is a buffer solution containing sodium chloride, sodium phosphate, and in some formulations potassium chloride and potassium phosphate

• Low endotoxin - <0.25 EU/ml
• Mycoplasma tested
• Liquid media products are formulated with cell culture grade WFI water
• Manufactured in a cGMP environment

PBS helps to maintain a constant pH and is isotonic and non-toxic to cells.