I saw some CBD e-juice at a head shop about a month ago and swooped it up. Put it into one of my re-usable 1 gram vape cartridge. Tasted ok, little harsh, but the cutting base usually the culprits of that.(glycerine, PG,PEG)
Didn't notice a huge reduction of pain or anxiety from it. That could be due to the source of the CBD and the quality.
I found another brand selling pre-loaded 500ml vape cartridges, with pure CBD and no additives. It tastes fucking horrible. Tastes like bamboo or something weird. BUT it does work to cause a slight head change and pain relief.
The very best CBD product I've ever found on the market is sold by a company called GUild extracts. They produce a 99% pure CBD crystalline. I dab that all the time and it helps with everything. Last time the company had vials of pure terpenes in a bunch of different flavors( Larry og, Versace, Girl Scout cookies, sour diesel). I'm cool with one of the guys in the company and he hooked up my crystalline with like 10 drops of terpenes of what ever flavor I wanted. Since I was buying a few grams they hooked all of them up with a different terpene flavor....10 drops of pure terpenes is like 100$. I can't even begin to describe how fuckinn tasty these dab hits can be.