GYH Premium-S 8-Color LED Light Therapy Face & Neck Mask with Handheld Light Wand - Infrared & Red Light Therapy for Face, Wireless, Lightweight - Anti-Aging & Acne Reduction

The Premium S model offers several enhancements over the Cloud-SSS. Notably, it features an added neck section, which includes an additional 48 light beads, expanding the treatment area and benefits. Furthermore, its controller doubles as a small handheld phototherapy lamp, equipped with 5 light beads, allowing for precise skincare treatments in targeted areas. This makes the Premium S more versatile and suitable for comprehensive facial and neck skincare routines.

The primary difference between the Premium S and the Premium models is the addition of an 820nm near-infrared light in the Premium S. This specific wavelength plays a crucial role in anti-aging treatments. The inclusion of this near-infrared light enhances the mask's effectiveness in combating signs of aging, making the Premium S a superior choice for those looking to intensify their skincare regimen.

LED’s provide a mechanism for Low-Level Light Therapy (LLLT) or
“Photo Bio-stimulation” – also called ‘Phototherapy’. The effects of Phototherapy
and LLLT are photochemical. When the correct intensity and frequency are used,
the light energy photons, generated by the LED light sources, are absorbed by
select chromophores in the tissue. This process stimulates mitochondrial
activity and Adenosine Triphosphate (ATP) production; promotes blood
circulation and tissue oxygenation, leading to pain relief and cell
proliferation, and facilitating the creation and extension of the anti-aging
enzymes. Low Level Laser Therapy (LLLT) of the correct wavelength , irradiance,
energy density dissociates Nitric Oxide allowing oxygen back into the cell, so
ATP is restored and oxidative stress reduced. Once normal mitochondrial
function is restored by LLLT then cell metabolism improves, and the cells
normal function is restored.

The wavelength of light is defined as "the distance between the two successive crests or troughs of the light wave". Therefore, the distance between one crest or trough of one wave and the next wave is known as the wavelength. Because LLLT works by delivering wavelengths of light into our skin where it is absorbed by our cells, its effectiveness is closely connected with the amount of light reaching the target tissue. Wavelengths are often referred to using their associated color and typically include purple/blue (400-495 nm), green (495-570 nm), yellow (570-590 nm), orange (590-620 nm), red (620-750 nm), and near-infrared (750-1200 nm) lights. All tissue targets have an optimum wavelength at which they absorb light. Different tissue targets trigger different biological processes.

Optical power density can be understood as the energy that light can transmit per unit area, in units of W/m² or mW/cm². Human cells respond to light with a biphasic effect, which means that neither too low nor too high energies can achieve the results we expect. A higher irradiance often means a shorter treatment time, but a higher irradiance isn’t always better. If the irradiance is too high, the photon energy will be transformed into excessive heat in the target tissue; the mask may become hot and can inhibit the treatment or even create undesired outcomes. GYH experts recommend choosing products whose irradiance is about 30mW/cm².

Energy density is measured in joules per square centimeter (J/cm²) and is the amount of energy delivered into the tissue. Dose (J/cm²) = Irradiance (mW/cm²) x Time (seconds).