Hi 4twenty1!
For cancer treatment you need THC in first priority. CBD you need also to assist and work together with THC. CBD reduces the high effect (have not got there yet myself) among other good things what it does. CBD can connect with your brain CB-1 receptors the same as THC does. Some receptors will be occupied by CBD, some are occupied by THC, so result is less high.
Please read the thread "Dosing tutorial", all 100-200 pages. It will be a great help for you. Make notes, read them over.
I google'd this "Plus CBD Oil by Gold Label". It is said to be 25% CBD oil. To me it reads, that there is 25% of CBD and 75% of something else. What else?
Then I have a question to everybody who might know:
If we make cannabis oil from dried buds, traditional ethanol method with winterizing, no other carriers added, what is the % of CBD and/or THC together? What else we have in there and how many %? Sure depends from 100 things but basically, does somebody know? Do we have more, than this "Plus CBD Oil" with it's 25% and how much more ?