Javier Mercado, better known as Synthetic, is an American producer and samplemaker from Los Angeles, California. He is best known for being one of the go-to producers of popular rapper Yeat, and additionally for his work with Lil Uzi Vert, Lil Gotit, Lancey Foux, and Kankan, among others. 
 He is the founder and owner of the popular production collective, Hologram.