Pluronic F-68 (Poloxamer 188, P188, MST-188) is a triblock copolymer of the form polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) with surface-active properties. Pluronic F-68 is used in the pharmaceutical industry as an excipient in various formulations and drug delivery systems. Pluronic F-68 is effective in the repair/recovery of damaged cell membranes.