Russian Cambrian blue clay is extracted from the salt lakes in Siberia, Russia. Cambrian Blue Clay is rich in mineral composition and is used to draw toxins from the skin. It has been reported to soothe skin irritation and draw out poison ivy. Cambrian clay gets its blue coloring from algae, zinc, and iron. It is a very strong clay. Kaolin clay is very gentle, soft clay commonly used to make porcelain. It is considered to be the gentlest clay, suitable for all skin types. Our dry clay masks are intended to be mixed with water, aloe vera juice, goat milk, apple cider vinegar, rose water, or your favorite liquid. Use equal parts dry powder and liquid, working into a paste. Apply liberally to your face and neck with a brush or your fingertips. Contains: kaolin clay, Russian Cambrian blue clay 1oz in resealable kraft paper bag.