I'm not sure which is best for your situation, but a guy at a woodworking store once told me true oil isn't as "natural" as people say. He said you have to be careful when you're looking for a completely natural finish, as many of the ones that claim to be 'linseed oil' or 'tung oil' are just finishes to mimic the look. For example, the boiled linseed oil carried at home depot isn't actually boiled linseed oil, but linseed oil with chemical dryers and other stuff in there. The real boiled linseed oil can't put "boiled linseed oil" on the container, because the company that makes the other stuff owns that name, so the real stuff, despite being linseed oil which has been boiled, has to be called soemthing else. Natural finishes can be tricky like that.