Optimisation of low-level light therapy (lllt) parameters and evaluation of its immunomodulatory effect on fibroblasts

Abstract Low-level laser therapy (LLLT) is being increasingly applied in regenerative medicine due to its ability to modulate cellular metabolism and support repair processes. However, the effect of various exposure parameters on fibroblast activity still does not remain fully understood. The study aim was to evaluate the effect of selected LLLT parameters (808 nm, 100 and 200 mW, 2 and 10 J/cm², pulsed beam) on the biological activity of fibroblasts in vitro. Fibroblasts were exposed to the est