THCA Carts are small vape cartridges filled with cannabis oil that contains THCA. On its own, THCA doesn’t make you high, but when heated in a vape pen, it turns into THC the compound that gives relaxing and uplifting effects. What Are THCA Carts? A THCA cart is a small cartridge that connects to a vape pen or battery. Inside the cart, there is cannabis oil made with THCA. THCA means...