You probably won't want to use a magic eraser to apply Leather CPR--they are notorious in my house for removing paint if you scrub for more than a few seconds. It's not like a sponge since there are cleaning agents in there that can damage a variety of surfaces. You can just use your fingers to apply the leather CPR since it's basically like a lotion (added bonus: It'll soften your hands too!)
Aaagh!! Tossing the magic eraser right now!! Fingers and microfiber cloth. Thanks so muchfor the help.