Glycerin, also referred to as glycerol or glycerine, is a colourless, odourless  liquid derived from fats and oils. Glycerin is used in industrial applications, food preparation and in personal care products.  It is often an ingredient in pharmaceuticals and as an agent in cosmetics, toothpaste, shampoos, soaps, herbal remedies, and other household items.  Because it is soluble in both, water and alcohol, its versatility is a major benefactor in its purported growth and popularity within the manufacturing sector.  It is invaluable as a natural source ingredient with emollient-like properties which can soften and soothe the skin and it assists the outer epidermis to retain moisture.  This explains why it is one of the most popular cosmetic additives used today.