With the seed/strain business essentially unregulated, and left to the sellers' word, claims of THC potency are often little more than a bigger number than the next guy. Discussions of sativa v. indica strains often delve into more distinctions. So, this link THC, CBD, CBN... Growing Marijuana covers a few common definitions for THC, CBD, CBN, THCV, CBC, CBL, and terpenes. Is there a more 'rule of thumb' regarding, specifically, the relationship between THC and CBD? Thanks for the input.
