Brand Developers claimed the pain relief provided, "electro-analgesia", was similar to TENS but had a "more effective, longer-lasting pain killing effect than a regular TENS unit". "The secret to the Pain Erazor is the science of Electro-Analgesia which utilises your body's own natural pain response system to relieve the effects of all types of pain," the product's description read on its website. "The Pain Erazor naturally stimulates your body's endorphin's[sic], nature's own painkillers, to send real pain relief - right where you need it." However they said Pain Erazor provided no evidence the pen had been successfully shown to work. There was still scepticism in the medical community about how effective TENS was for pain relief.

Source: New Zealand Herald March 04, 2017 06:33 UTC