3.5oz colorful and fragrant bars of Glycerine Soap. For the last century Glycerine Soap has been a mainstay for many households. Glycerine helps retain moisture. These bars possess excellent cleansing properties and leave the skin soft. French Vanilla will remind you of cookies and cakes straight from Gramma's Kitchen. Because of the rich Vanilla we use, our products often take on a caramel hue.