The minor cannabinoid cannabigerol (CBG) is a highly specific blood biomarker of recent cannabis smoking.
Rague JM, Ma M, Dooley G, Wang GS, Friedman K, Henthorn TK, Brooks-Russell A, Kosnett MJ. The minor cannabinoid cannabigerol (CBG) is a highly specific blood biomarker of recent cannabis smoking. Clin Toxicol (Phila). 2023 05; 61(5):363-369.