Hi all, I'm hoping someone can enlighten me. I've read a lot of stories of how cannabis oil has helped brain tumors shrink, eventually curing them of cancer. Does the oil have to be from cannabis? I've seen a number of sites selling pure CBD oil created from filtering huge quantities of Hemp. Would this have the same effectiveness as cannabis oil, or is cannabis oil high in THC too? I'm from the UK where CBD oil derived from hemp should be ok legally. I have recently found out that a relative has been diagnosed with an aggressive form of stage 4 brain cancer. There's nothing they can really do for them, and have given them 9 months to live. If I can get my hands on something which could help them, it's something i'd be willing to do.