IOLI Water is sourced from an artesian spring on Iti Mountain in central Greece, an area renowned for its excellent water resources and springs. As the water flows underground, it is enriched by geological formations with essential minerals and naturally filtered through the rock formations of the underground environment. Consequently, IOLI emerges on the earth's surface in absolute purity. It is bottled without any treatment or intervention in its composition, ensuring it reaches the consumer in its natural condition.

The bottling procedure and production processes of IOLI Natural Spring Water strictly follow the ISO 9001:2000 Quality Management System, ISO 14001:2004 Environmental Management System, OHSAS 18001:1999 Occupational Health & Safety Management System, and ISO 22000:2005 Food Safety Management System certificates. The water is pure, mild, natural, balanced, and enriched with the most precious constituents offered by Nature's Factory.