coMra works inside the skin rather than on its surface. The infrared laser and the magnetic field together open an additional ATP synthesis channel in the cells, the ultrasound in the Pro devices (40 kHz) speeds molecular transport so enzymes meet their substrates faster, and the colour LEDs deliver the rejuvenation sequence – red, then yellow-green, then indigo-violet – the order used specifically for enhancing existing healthy tissue in cosmetology. On the coMra Pro, this is what the Vitality function is for: it switches to the rejuvenation sequence with a stronger ultrasound. With more energy and better transport available, the skin's own fibroblasts can get on with collagen secretion and capillary growth, which is what visible firmness and even tone actually rest on. Nothing is deposited and nothing is removed: coMra restores the conditions, the skin does the rejuvenating.