These tarts are superscented, meaning I put almost 3 times the amount of fragrance oil that this wax is designed to hold. Wax “holds” a certain amount of fragrance oil meaning that when making candles, if you use too much the wick will not fully light and will get clogged, which causes your wick to burn down the center of the candle known as tunneling. Since tarts and melts dont have wicks and only need to melt, I am able to super scent them and make them extremely fragrant!