Lasers have played important roles in medicine for many years now, but most people have known them as surgical tools. While surgical lasers are indeed highly precise and effective, they operate at a relatively high-frequency level to cut and seal tissues. By contrast, low-level lasers (sometimes referred to as “cold” lasers) do not disrupt tissue at all; in fact, they pass right through the skin, completely harmlessly, to a depth of several centimeters. The underlying tissues receive the full benefit of this frequency range, which is known to trigger the production of ATP. ATP is a substance that gives cells the energy they need to rebuild tissues. Laser therapy, therefore, helps bodily structures repair themselves more quickly and easily than they could otherwise, giving injured or ailing pets a big boost in the healing process.