Pretty and gentle transparent glycerine soap for very precious skin. Every little girls bathtime wish can now come true. Sold in sets of 12. What is glycerin? Glycerin, or glycerol, is derived from plant-based oils. It also occurs naturally in fermented goods, This ingredient was “accidentally” discovered in 1779 by a Swedish chemist heating up an olive oil mixture. He identified the resulting fat as glycerin. Since the mid-nineteenth century, people have used glycerin to create soap. This process involves heating up certain plant oils and allowing the solution to cool and harden into bar form. (from HealthLine.com)