Petroleum jelly similar. Petroleum jelly is a non-polar hydrophobic (water-repelling) hydrocarbon and insoluble in water. Glycerol is an alcohol that is strongly hydrophilic (water-attracting): by continuously absorbing moisture from the air (hygroscopic), it produces the feeling of wetness on the skin. This feeling of wetness is similar to the feeling of greasiness produced by petroleum jelly. Most uses of petroleum jelly exploit its lubricating and coating properties. Vaseline brand First Aid Petroleum Jelly, or carbolated petroleum jelly containing phenol to give the jelly additional antibacterial effect, has been discontinued. During World War II, a variety of petroleum jelly called "red veterinary petrolatum,"
Royal jelly does not support the claim that consuming royal jelly will give health benefits in humans. In the United States, the Food and Drug Administration has taken legal action against companies that have used unfounded claims of health benefits to market royal jelly products. Royal jelly is harvested by stimulating colonies with movable frame hives to produce queen bees. Royal jelly is collected from each individual queen cell (honeycomb) when the queen larvae are about four days old. These are the only cells in which large amounts are deposited; when royal jelly is fed to worker larvae, it is fed directly