Blue Clay Soap. Cambrian Blue clay is a rare clay and also one of the most beneficial to your skin. Cambrian Blue Clay comes from Siberian lakes and is known for its clarifying and skin balancing properties. This clay penetrates deeply into your pores to draw out impurities while also helping your skin to maintain moisture. It works really well as a face or body soap.This soap is lightly scented with high quality essential oils of Lavender & Peppermint and is 100% natural. A unique and beautiful soap with a wonderful soft, smooth texture. Formulated for normal to combination / oily skin types. Each bar weighs approximately 4 oz.