Perlage comes from the resources of the Nałęczów waters located in the area of the famous spa specialising in the treatment of heart conditions and hypertension. It is bottled at the source in one of the most modern plants of this type in the world. Its deposits are fully insulated from the influence of external factors by a layer of 100 meters thick rocks. The time of penetration of drops through these insulating layers to the source is over 400 years, which is a unique phenomenon on a global scale.