Crystal reviewed the Brush & Sponge Cleansing Gel by Real Techniques in a video review. She mentioned that the gel effectively cleaned her brushes, leaving them noticeably white. However, she compared it to the Cinema Secrets cleansing gel and preferred the latter because it dries down without the need for rinsing. Crystal also demonstrated the gel's effectiveness on a dirty sponge. Overall, she acknowledged that the Real Techniques gel works but would personally reorder the Cinema Secrets gel. Despite this preference, the Brush & Sponge Cleansing Gel by Real Techniques is still a reliable product that effectively cleans brushes and sponges.