5% digitonin is a detergent solution used to prepare natural protein samples by adding NativePAGE™ gel to the sample. glue system before use. Also included in the NativePAGE™ sample preparation kit, this ready-to-use detergent solution enhances the solubility of hydrophobic and membrane proteins during sample preparation. Samples prepared with 10% DDM, 5% digitonin, or the NativePAGE™ Sample Prep Kit are compatible with NativePAGE™ Novex Bis-Tris gels for native electrophoresis and exhibit higher resolution and fewer bands .