Jack Flash is a sativa-dominant hybrid (sativa/indica ration of 70:30) with THC levels reaching as high as 20%. That makes this a very potent strain for patients seeking a body high with psychedelic effects and a euphoric boost. This plant, which won the Dutch High Life Cup in 1998, is a hybrid of the sativa Jack Herer, the indica Super Skunk, and Haze, itself a sativa. It’s best known for the speed of the high, which hits almost instantly, a result of this strain’s Jack Herer genetics. While THC levels are high, CBD levels are something of a mystery: This definitely isn’t recommended as a CBD strain, but the exact percentage of CBD is unknown. Jack Flash smells of earth and citrus and has a sweet flavor. The high is multi-faceted, with deep body relaxation, euphoria, energy, and creativity, along with a strong happy feeling. It provides relief to patients suffering from anxiety, depression, and bipolar disorder. It’s also good for ADHD, anorexia nervosa, and migraines. Negative effects are limited to a relatively slim possibility of dry mouth or dry eyes. Dizziness is possible but unlikely.