A cikin bita na 2015, masu bincike sunyi nazarin gwaje-gwajen da suka yi amfani da hasken ja da kusa-infrared akan tsokoki kafin motsa jiki kuma sun sami lokacin har sai gajiya da yawan adadin da aka yi bayan gyaran haske ya karu sosai.
"Lokacin har gajiya ya karu sosai idan aka kwatanta da placebo ta 4.12 s kuma adadin maimaitawa ya karu da 5.47 bayan phototherapy."
