I am using liquid colostrum for past three years, it helped me to improve my health dramatically..I am hep c sufferer for past 40 years, failed two treatments with pegylated interferon and ribavirin and colostrum helped me to rid of hep c symptoms, built up my immune system, level of energy, restfull sleeping patern without any side effects...it is amazing product and it changed the quality of my life back to normal....