What is the difference between LYMA Laser and LED masks?

In the same clinical study, LYMA Laser activated 45 genes while a comparable LED device (810nm, actually 10× higher power than LYMA) activated just 1 gene. The difference comes down to light physics: laser light is coherent and collimated, delivering energy efficiently to cells. LED light is diffuse and scattered, with much energy lost before reaching target tissue.