– PRO-F, a photoactivable hydrogen sulfide (H2S) donor, possesses reactive oxygen species (ROS) scavenging properties and emits a fluorescent signal upon light activation, enabling real-time tracking of H2S release. Its activation is independent of endogenous substance consumption and facilitates intracellular H2S delivery, safeguarding cells from excessive ROS-induced damage. Notably, PRO-F has demonstrated efficacy in promoting chronic wound healing in diabetic models [1].