A wickless candle, called a Scentsy Bar or a Scentsy Brick, is a highly fragrant wax bar that is warmed to release fragrance into the air. Because the wax is gently warmed rather than burned, it can hold more fragrance oil than a traditional candle. And, because there is no flame, there is no smoke, soot or lead. Scentsy wickless candles are a safer alternative to traditional candles.