Chithandizo cha laser ndi chithandizo chamankhwala chomwe chimagwiritsa ntchito kuwala kolunjika kuti chilimbikitse njira yotchedwa photobiomodulation (PBM imatanthauza photobiomodulation). Panthawi ya PBM, ma photon amalowa mu minofu ndikugwirizana ndi cytochrome c complex mkati mwa mitochondria. Kuyanjana kumeneku kumayambitsa zochitika zambiri zomwe zimapangitsa kuti kagayidwe ka maselo kachuluke, komwe kungachepetse ululu komanso kufulumizitsa njira yochiritsira.
Chithandizo cha Photobiomodulation chimatanthauzidwa ngati njira yochizira kuwala yomwe imagwiritsa ntchito magwero a kuwala osapanga ma ioni, kuphatikiza ma laser, ma diode otulutsa kuwala, ndi/kapena kuwala kwa broadband, mu spectrum yamagetsi yowoneka (400 - 700 nm) ndi near-infrared (700 - 1100 nm). Ndi njira yosatentha yomwe imakhudza ma chromophores amkati omwe amachititsa zochitika za photophysical (monga, linear ndi nonlinear) ndi photochemical pamitundu yosiyanasiyana ya zamoyo. Njirayi imabweretsa zotsatira zabwino zochizira kuphatikizapo koma osati zokhazo zochepetsera ululu, immunomodulation, ndi kulimbikitsa kuchira kwa mabala ndi kukonzanso minofu. Mawu akuti photobiomodulation (PBM) therapy tsopano akugwiritsidwa ntchito ndi ofufuza ndi akatswiri m'malo mwa mawu monga low level laser therapy (LLLT), cold laser, kapena laser therapy.
Mfundo zazikulu zomwe zimayang'anira chithandizo cha photobiomodulation (PBM), monga momwe zikumvekera m'mabuku asayansi, ndizosavuta. Pali mgwirizano wakuti kugwiritsa ntchito mlingo wochiritsa wa kuwala ku minofu yofooka kapena yosagwira ntchito bwino kumabweretsa mayankho a maselo omwe amachokera ku njira za mitochondrial. Kafukufuku wasonyeza kuti kusintha kumeneku kungakhudze ululu ndi kutupa, komanso, kukonzanso minofu.