Skin care products function optimally when they are fresh. Product freshness can be adversely affected by light, oxygen, microorganisms such as bacteria and molds, and evaporation. This is particularly problematic when creams are packaged in jars but can also be an issue with standard tubes or pumps. HydroLift and Wonder Cream are packaged in airless pump dispensers. Airless pump packaging ensures that these creams are not subjected to environmental degradation as routinely occurs when even high-end creams are packaged in jars. Airless pumps are expensive and can sometimes look a little plain - but they serve the higher purposes of product integrity and freshness.  Jars are pretty - for sure - but they are not a safe home for world class skin care products.