Indeed, red light therapy is very versatile. It increases the rate of stem cell maturation, helps cell to de-stress (by pushing out nitric oxide), increases ene

Indeed, red light therapy is very versatile. It increases the rate of stem cell maturation, helps cell to de-stress (by pushing out nitric oxide), increases energy production (by stimulating cytochrome-c-oxidase), and on top of that has systemic effects, too - the nitric oxide kills some pathogens and vasodilates (lowering high blood pressure), and, depending on where you shine the light, e.g. hormone production is increased. Those are all subtle improvements, but they add up.