Humanano is a beauty serum that contains placental growth factor as well as EGF &FGF, which are essential for the skin. It is liposome in order to penetrate the skin rapidly. It is a safe formulation that does not use any animal-derived ingredients, parabens, fragrances, surfactants, alcohol, mineral oils, or silicones. It's very effective for dull skin, pores and dryness. Other High-viscosity serum: Easy for the skin to adhere, but tend to have heavier texture Our NO-viscosity serum: Penetrate to deep skin layer, last longer, cost-effective. Approximately one month's supply HUMANANO 100% concentrated beauty serum contains PGF,EGF and FGF. It prevents dullness and skin dryness and minimizes pores. Producing smooth and radiant skin.