Please use this link to access this publication. Abstract Objective: Amid continuously rising concentrations of delta-9-tetrahydrocannabinol (THC) in cannabis (i.e., potency), high-potency cannabis is a major topic in contemporary cannabis policy discussions, yet its impact on health is not well understood. The authors conducted a systematic review of observational and experimental studies examining the relationship between high-potency cannabis use and a range of health outcomes. Methods: Records were obtained from a systematic search of five biomedical research databases. The authors developed ecologically relevant potency (percent THC) exposure-comparison categories (1%–9%, 10%–19%, 20%–30%, kief/resin [∼30%–50%], concentrates [≥60%]) and used a landmark scientific report on cannabis and...