TFI (Transmembrane Fast Imbalance) technology is based on iontophoresis as the core technology. It can effectively and quickly introduce ingredients through transmembrane rapid asymmetric technology, while minimizing the tingling sensation of skin, and the effect on the skin is normal. Compared with absorption, the strongest can increase the absorption effect by more than 3000 times. Therefore, TFI is the most important milestone in technological breakthrough since the birth of iontophoresis technology.