Liver can fully upgrade for 300-500 days (150 days live every cell of the liver). The cells on the surface of the lungs is updated every 14-21 days, 11-12 months, the alveoli, the skeleton 10 years, 1-2 times heart for life. Most of the cells in the brain are living with  nucific bio x4   a person throughout his life. In the eyes can be updated only corneal cells, there is a replacement of its top layer every 7 - 10 days. If the cornea is damaged process is even faster - it can recover per day. The epidermis of the skin is exposed to fair wear ..

http://www.prohealthguides.com/nucific-bio-x4/