Gray Wolf, I'm hoping that you can help me out with this. There's a member on this site that seems to be informative and he stated that Naptha Oil extractions are better than Butane extractions in treating cancer. From a personal perspective, I don't feel comfortable with using Naptha because of what is in it and I don't want to potentially hurt someone by those chemicals. Does that mean that Butane extractions will not fight my friends cancer? Do you have any knowledge to add to this subject?