Physics for Chiropractors: Can Laser Therapy Damage Tissue?
The dosages recommended for laser therapy are far below those needed to damage cell cultures. Also, with their wavelength range from 635 nm to 1,064 nm, therapy lasers produce photons that do not ionize living matter. So, laser therapy does not cause cancer, or damage to skin, tissues or DNA, because therapy laser light is non-ionizing and is delivered at dosages far below those needed to cause damage.
