After irradiating human skin and by photochemical effect, the light can accelerate the 7-dehydrocholesterol of the skin transforming to cholecalciferol and further improving the metabolic balance of calcium and phosphorus ion in order to increase bone density, cure osteoporosis, chondropathy and dysplasia and prevent cardiovascular, endocrine and immune system complications caused by disorder metabolism.

High energy red light is with strong penetration which is applicable to anti-inflammation, ease pain, stop tissue fluid on wounded surface, accelerate wound healing, increase cell enzyme activity, improve ion metabolism, reduce muscular tension, relieve muscle spasm and prevent cardiovascular diseases and cytometaplasia. Moreover, red light is used on neurodermatitis, acne, burn, scald, tendinitis, bruise, chronic cough, asthma, eczema, arthralgia and rheumatoid arthritis clinically.

Green light is with relaxing and calming function and has obvious analgesia and sedation effect on sensory nerve. Therefore, there is great phototherapy function on hypertension, hemiplegia and neurasthenia. It is also be used on curing asthma, climacteric syndrome, nerve paralysis, kidney diseases, diabetes and digestive tract diseases, detoxifying, relaxing nerve, calming nerve and helping to fall asleep, eliminating depression, healing pachulosis, wrinkle, blackhead, acne and disorder metabolism from fatigue and nervousness.

Blue light can promote protein and collagen synthesis, which is suitable for curing infant jaundice, allergic, oily and acne skin, inhibiting bacillus, activating and tightening skin and stretch marks, relaxing nerve, relieving pain, reducing excess erythrocytes, eliminating tissue hyperemia and improving lymphatic system. Clinically, it has been used on goiter, chronic heart disease, insomnia and climacteric syndrome.

Purple light stimulates secretion system and smoothes lymph, its function is weaker than red light but can repair skin and mucosa ulcer and acne.

Yellow light is able to remove freckle, desensitization, inhibit pigmentation, accelerate wound and ulcer recovery. While it is promoting adrenaline secretion, it is improving the immunity as well. Medically, adrenaline can stimulate the heat when it stopped or dilate trachea for asthma.

Orange light can promote blood circulation, accelerate metabolism, improve thyroid function, lower cerebrovascular and coronary artery sclerosis degree, increase appetite, cure emaciation and anemia and apply on common heat diseases especially weak heartbeat. Use with blue light when healing chronic heat disease and palpitation.