Shang He beauty instrument can't be used for 20 years. Shang He beauty instrument can be used for 5 to 10 years. Twenty years is too long. There are many bacteria on the beauty instrument, which will damage the machinery and equipment, reduce the effect and update the product quickly. After 20 years, the efficacy of this product will not be as good as before. Shang He beauty instrument, also known as Shang He spring instrument, can compress and expand 1 MHz ultrasound, forming micro-vibration liquid circulation of 1 10,000 times per second, promoting metabolism and restoring cell activity. Numerous tiny bubbles will be formed in body fluids, which will wrap the toxins and wastes in the body and disperse them. It has multiple effects of enhancing cell activity and permeability, firming skin, improving skin problems, burning fat and slimming.