Technical theory 

Nanometer (nm) is length units, 1nm is one billionth meter, and around four atom diameter.
The diameter of DNA chain is around one nanometer.
Nanometer technology is the high technology in 21 century, and nanometer materials have special
performance that different from traditional materials. Nanometer technology is the revolutionary
innovation of material technology.
Nanocrystals is developed by eight Chinese scientist, can improve the skin absorption ability of
nutrition products for ten times. It is the highest achievement of biological nanometer technology,
and has 12 patents in USA and China. Nanocrystals high efficiency beauty crystal plate is made
from monocrystalline silicon according to skin structure and nanometer technology.