Chem Zero, also called Top Dawg, is a sativa-dominant cannabis strain made from a genetic cross of Chemdog x (Zkittles x Sour Dawg). Chem Zero is complex, with a nose of sweet coffee, astringent gas, and fruity funk. Expect creative, uplifted, and relaxed effects. Top Terps: t-Caryophyllene, Limonene, a-Humulene