There are numerous benefits to combining different wavelengths of light therapy, the most significant being that the broader spectrum (620nm ◦ 670nm ◦ 760nm ◦ 830nm ) provides even effects across a range of depth of tissue.

With the red-only lights you are focusing more on the surface tissues.
With the infrared-only lights you are focusing on deeper tissues.
With the Combo lights you are getting effects across a range of tissue:

• 620nm and 670nm light has effects in the skin, but on slightly different layers (620nm more for epidermis, 670nm more for dermis).
• 830nm is potent and penetrates well to the subcutaneous tissue and muscles.
• 760nm is the deepest penetrating of all, reaching cells that no other wavelength can.

Studies looking at combining wavelengths show great results both for skin/hair/eyes and deeper tissue areas. These Combo Lights are so versatile and easily the best choice for anyone interested in treating a wide variety of issues.

These devices can be used close to the body to provide a high light intensity - this ensures ample penetration to deeper tissues.

When used from a greater distance the light spreads out and covers a larger area of skin, giving optimal effects for surface tissues.