Mosquito and insect bites introduce proteins that trigger histamine release and activate itch-signaling nerve fibers. Brief, controlled heat around 50–51°C denatures some of those proteins and counter-stimulates the same nerve pathways, which is thought to be why it interrupts the itch response. A large real-world study of over 12,000 treated bites found itch dropped by more than half within a minute of heat application, and by roughly four-fifths within ten minutes. An earlier controlled trial and an open cohort study at German lakes reported similar fast relief for pain, swelling and itching across mosquito, horsefly, bee and wasp bites. We built nLIV Pulse around that same temperature and contact-time window rather than a novel, unstudied one.

The vibration pulse is a secondary comfort layer, not the main mechanism. It draws on gate-control theory — the well-established idea that a competing sensory signal (touch, pressure, vibration) can reduce how strongly the nervous system registers itch or pain in the same area, which is the same principle behind rubbing a bruised knee. We're being direct about this: the evidence for heat on insect bites specifically is strong; the evidence for vibration is more general nerve physiology rather than bite-specific trials, so we treat it as a comfort addition on top of the heat, not the headline claim.