Gelatin methacrylate (GelMA) is a gelatin-based bioink that provides mammalian cells with the essential properties of their native environment. GelMA is modified with methacryloyl groups to crosslink with a photoinitiator (like LAP) or exposure to UV light (available using INKREDIBLE+, BIO X, and a 365 nm or 405 nm photocuring system). Available with a 0.25 percent LAP photoinitiator.