stimulate the production of white blood cells following chemotherapy . It has also recently been evaluated in clinical trials for its potential as a vaccine adjuvant in HIV-infected patients. #6 EPIDERMAL GROWTH FACTOR – PH-1993  – $27,500/gram $27.5/mg   http://en.wikipedia.org/wiki/Epidermal_growth_factor Epidermal growth factor or EGF is a growth factor that plays