Green light is believed to have a unique effect on the body’s photoreceptors. Therefore, this therapy is particularly effective in improving sleep quality by regulating the body’s natural circadian rhythm.

By suppressing melatonin production in the morning, this type of therapy can help wake up the body and promote alertness throughout the day. Exposure in the evening can promote relaxation thus improving sleep quality.

Green light therapy has an analgesic effect, meaning it can reduce pain in the body. The mechanism of action is that green light helps to stimulate the production of natural pain-relieving chemicals.

Green light therapy improves skin health by stimulating the production of collagen, a protein essential for healthy skin. It is responsible for maintaining the structure and elasticity of the skin. A decrease in collagen production can lead to wrinkles, sagging and other signs of aging. Green light therapy also has a positive effect on skin pigmentation. It can help reduce the production of excess melanin, which can lead to dark spots and uneven tone.

Exposure to green light can increase activity in the prefrontal cortex and amygdala, the areas of the brain responsible for processing emotions—leading to feelings of relaxation, calm and happiness.

Green light therapy can reduce eye strain by improving the balance of visual processing and decreasing the production of harmful reactive oxygen species that can damage vision.

Green light therapy’s ability to speed up muscle repair is one of the main ways it might enhance sports performance. Inflammation and oxidative stress are decreased, which can hasten the healing process and improve performance all around. Green light treatment can also promote restful sleep, which leads to quicker reflexes and better decision-making.

SAD, a form of depression that often manifests in the fall and winter when there is less daylight, is connected to the change of the seasons.