After 12 years of our time, developed a combination of high-tech intentions, the exclusive top-level microcomputer technology patents, can improve the skin problems of the "microcomputer high-frequency deep cleaning machine" and other skin care instruments, such as: 2 in 1 Power Light Repair Section , ion cleansing device, instrument, such as import; stick with the plant extract of the "YT4-Youth Switch series of natural herbal skin care products" is also a good choice for skin care. 


 "Ya Yan Tong Biochemical Technology Co., Ltd." products are qualified by SGS testing, and access to the "National Quality Assurance Award," the award, now in Taiwan to set up one after another in various positions to join and actively promote the products to the international market. 


 Refused to chemical damage and enjoy fresh pure natural herbs, YT4 adhere to four principles: 

 ? top most natural plant extracts to ensure that 
 ? pure and gentle herbal formula without the burden of 
 ? good absorption of molecular technology to produce skin 
 ? strictly control product quality guaranteed