Synthesis is the third studio album by Filipino actress-singer Glaiza de Castro, released in April 2015 by Homeworkz Services. The album is self-produced,[1] and was described by de Castro as "a mixture of genres that influenced me—pop, rock."[2] The album consists of eight songs and was certified gold on 29 September 2015 by the Philippine Association of the Record Industry (PARI).[3][4]