Revive is a natural, yeast-derived source of high levels of essential growth factors like vitamins (pantothenate and biotin) and minerals that act as enzymatic co-factors (magnesium, manganese and zinc). These ensure the efficiency of transport mechanisms in the cell membrane and promote cellular growth. Revive also provides amino acids, micronutrients and stress resistance and survival factors like ergosterols and fatty acids. These compounds increase the quality of the yeast  metabolism, as well as their tolerance to ethanol.