i heard someone mention they dont test for THC in your system but for some chemical that tells you've had use of your cannbinoid receptors...

can anyone confirm any truth about what drug tests actually test for?
Acouwaila Reviewed by Acouwaila on . What do they actually test for?? i heard someone mention they dont test for THC in your system but for some chemical that tells you've had use of your cannbinoid receptors... can anyone confirm any truth about what drug tests actually test for? Rating: 5