Red Light Therapy Wavelength Guide

Not all wavelengths are created equal. Understanding the difference between red (630-660nm) and near-infrared (810-850nm) is key to choosing the right treatment for your goals.

The Therapeutic Window

630nm

Red

660nm

Red

810nm

NIR

830nm

NIR

850nm

NIR

Bar height represents relative penetration depth. Click any wavelength for details.

Wavelength Details

Red Light (630nm)

Penetration: 5-8mm (upper dermis)

Hair regrowthSurface wound healingAcne bacteria reduction

Red Light (660nm)

Penetration: 8-10mm (dermis)

Skin rejuvenationWound healingAcne

Near-Infrared (810nm)

Penetration: 30-40mm

Tendon injuriesBrain healthDepression

Near-Infrared (830nm)

Penetration: 35-45mm

Nerve regenerationBone healingDeep tissue repair

Near-Infrared (850nm)

Penetration: 40-50mm (deep tissue)

Joint painMuscle recoveryNeuropathy