Neuromarketing?

Is neuromarketing still a thing? I really want to go into Neuroscience. I originally wanted to go in to study migraines and headaches, but I am still really attracted to the behavioral psychology side of it. I grew up in the restaurant business and am really good with customers. I wanted to know if I could take the best of both worlds? Maybe possibly become a consultant for advertising companies or a market researcher? Could I go into it with just a science degree (hope to get a phd) or should I spend a few years taking business/marketing courses also?