Health Aid Psyllium Husk Fiber is made from high-purity, non-irradiated Psyllium bark. Psyllium is a laxative that creates swelling and is high in fiber and colloids. Its laxative properties are due to the swelling of the skin when it comes in contact with water. In addition to the traditional use of psyllium in constipation, it is also used as an aid in controlling weight, cholesterol and general intestinal health.