PhD Zhou Huijun started iDNA.com.cn in 2008, after 20 years of experience in gene technology.

The main product of iDNA's online business is drug safety DNA detection for kids. By explaining the secret code of each DNA, kids can avoid being harmed by adverse drug reaction, which may cause deafness or muteness in young children.

What drove Zhou Huijun to come back from Silicon Valley is her desire to bring gene technology to the common family, and to help people have a safer and healthier life.