Micro-plastic robot, CDT therapy uses a 30G syringe to inject medical grade C2P gas into the skin or under the skin, which is widely used to treat dermatoglyphics, fatty rings, local fat accumulation and dark circles, so as to achieve the therapeutic effects of removing wrinkles, dark circles, bags under the eyes, scars, pregnancy marks and dermatoglyphics. This therapy is widely combined with other minimally invasive cosmetic treatments.