I am confused by all these different terms like photobiomodulation (PBM) and Low-Level Laser Therapy (LLLT). What are these and how do they differ from red/NIR light therapy?

In short, these are all basically interchangeable terms.

Historically speaking, it was thought that lasers (coherent light beams) had unique effects that were totally different from LEDs. Thus, the bulk of the research has been done with lasers and uses the term “low-level laser therapy” or LLLT for short. But now studies have shown that, in the realm of red light therapy, LEDs could reproduce similar effects to that of lasers.

Leave a Reply