Bentonite Clay absorbs oils and dirt from the skin by sticking to the ions and molecule's materials. As the clay leaves the body, it removes the toxins and other materials along with it. Bentonite Clay includes many natural minerals such as calcium, magnesium, and iron. Use bentonite clay to remove toxins from the body, treat oily skin and acne, detoxify the skin, treat poison ivy, aid in weight loss, and treat diaper rash.