Nielsen-Massey Pure Lemon Extract - Wow! Both flavor & convenience. In this product, the essence of whole lemons is delivered in a high-quality, easy to use extract. Pure Lemon Extract can be used to replace lemon juice in many recipes, or to enhance the flavor in dishes that also contain lemon juice or lemon zest. Use lemon extract to spark up vegetables, gelatins, fish, pork or chicken, pastry fillings, & frozen desserts. Lemon Extract has arrived! The possibilities are endless.