Research indicates that skin can reflect up to 90-95% of red and near-infrared light, with only 10-12% of light irradiance being absorbed in skin models [1,2]. This high reflectance often leads non-contact methods to use potentially harmful high intensities to reach deeper tissues, risking overheating and overdosing surface skin [2]. Our contact method eliminates these inefficiencies by minimizing reflection and maximizing absorption, allowing for precise dosing. This approach aligns with numerous PubMed studies that utilize contact methods with LED clusters, arrays, and lasers to achieve the most accurate dosage and eliminate reflection variability [3].
[1] Ash C, et al. "Effect of wavelength and beam width on penetration in light-tissue interaction using computational methods." Lasers Med Sci. 2017.
[2] Barolet D, et al. "Infrared and skin: Friend or foe." J Photochem Photobiol B. 2016.
[3] Hamblin MR. "Mechanisms and applications of the anti-inflammatory effects of photobiomodulation." AIMS Biophys. 2017.