ProPAGE™ mini-gels with running buffer create a high-performance precast gel system for routine protein electrophoresis. Gels are provided with running buffer powder—enough to make 5 L by adding water. ProPAGE gels can be used for both SDS-PAGE and Native gel applications. Crafted using Tris-Mops neutral pH buffer free of SDS, ProPAGE gels have a 12-month stable shelf life, reproducibility, and good separation of proteins from 6.5 kDa to 205 kDa, with clean resolution for staining or Western blotting.