1.Theoretical basis for PDT led light machine

LED offer a totally natural, non-ablative method for skin rejuvenation.The light from the LED interacts with cells and stimulates them to produce new collagen and elastin bio light therapy.Studies confirm that the same LED energy can be used to inhibit co-llagen formation, By manipulating the wavelengths, cells can be turned on and off. Yellow light are used for photo-rejuvenation.Blue light are used in the treatment of acne.Red light are used for photo dynamic therapy, green Light reduce melanin cell,decreased pigment.   

2.Special function of calcium supplement
Calcium supplementation light: 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.