PEG Virus Precipitation Solution is specially designed and optimized solution for precipitating viruses , eVLP or EVs. It provides an easy, convenient and time-saving method to concentrate Viruses, eVLPs or EVs without ultra-centrifugation. . Easy to use and cost-effective method for highly efficient viral concentration . Non-toxic reagents safe for use with all target cell lines . No accumulation of cellular debris like with ultracentrifugation . Sterile and ready for use in cell culture . Ideally suited for concentrating virus from large volumes . Freeze pseudoviral particles without titer loss.