There are a lot of brands making their own RSO. I have tried a "few" in my search to relieve the intense chronic pain of osteoarthritis. Eroded cartilage and exposed bone nerves releasing the pain like lightning bolts. The Quack Shack 420 suggested I try their RSO which is also a full extract cannabis oil. Straight to the point, Quack Shack's RSO has had a more positive effect than any other RSO I have tried. Every joint felt like it was gently wrapped in a cushion. Tight, aching muscles relaxed and head pressure decreased. I even experienced greater focus as their RSO doesn't result in the drowsiness I get with other RSO and even edibles. I was able to get more work done, and I felt great while doing it. I feel that is what pain management should be.