Which wavelength range is typically most effective for therapeutic laser treatments?

The range of 600 nm to 1000 nm is recognized as the most effective for therapeutic laser treatments because it corresponds to the wavelengths that penetrate tissue most efficiently while promoting optimal biological responses. Within this range, there is a balance between light absorption and tissue penetration, which allows for effective stimulation of cellular processes and healing mechanisms.

Wavelengths in this range strike a favorable balance where they can be absorbed by chromophores such as cytochrome c oxidase, which is essential for ATP production in cells. This enhances the metabolic activity leading to increased blood flow, reduced inflammation, and accelerated tissue repair and regeneration.

Additionally, wavelengths above 1000 nm may penetrate deeper within the tissues but are often less effective due to increased scattering and absorption by water, which can limit their therapeutic benefits. Wavelengths below 600 nm might not penetrate tissues as effectively and are often less utilized in clinical practice for therapeutic purposes. This is why the range of 600 nm to 1000 nm stands out as the most effective for achieving desired therapeutic outcomes in laser treatments.