GelMA/Laponite hydrogels combine physical and covalent photo-crosslinking from GelMA and ionic reinforcement from Laponite. It creates a shear-thinning bioink that is highly printable, cell-friendly, and stable after covalent photo-crosslinking. Laponite provides ionic interactions to create a reinforced network, allowing GelMA to behave as a shear-thinning bioink with self-healing properties. In addition, after photo-crosslinking of the GelMA component, Laponite reinforcement synergistically enhances mechanical strength. Scale bar: 2 mm.