Introduces genes from Aequorea victoria jellyfish and deep-sea anglerfish to produce bioluminescent protein chains beneath the skin. The result is a soft, controllable glow that can be patterned, dimmed, or brightened at will. Popular installations include glowing circuit-trace patterns along the arms, luminous freckles, and full-body constellations. The light is real — it illuminates a dark room. High-tier versions from Lacuna Genomics allow programmable patterns that shift throughout the day. Street versions from backroom gene clinics are often stuck on a single color and brightness, turning the user into a permanent lantern. In the Narrows, people with glowskin are walking nightlights, and some lease their presence to vendors who can't afford electric signage.