Our dietary supplements contain Chinese herbal extracts, gluconolactone and vitamin b1. It is quick to absorb and easy to use designed for quick absorption with immediate results. Put two drops into your mouth with an eyedropper. The way to use it is very simple: shake it well before eating, 1-2 drops at a time, 1-2 times a day. And can be easy to use, easy to operate, anytime, anywhere.