I''ve cultured approx 25 different types of breast cancer cell lines, from MCF7 & T47D up to MDA-MB-231, LM2 & Hs578T, but I've never added beta-mercaptoethanol to my culture media. I also don't know anyone who does, or why you would want to add it to media.
Hi thank you for your responses. In considering to high proliferation of cancer cells. beta-mercaptoethanol in low concentration can remove ROS generated during cancer cells proliferation.