7-layers anionsanitary pads napkins/towels7-Layers – Description of functionality and uniqueness of each layersfirst layer: soften cotton surface giving you super comfortsecond layer: unique anion (Namo silver) core chip: anti-bacterical,relieve menstural discomfort or herbal core chip or herbal essencethird layer: ultra soft cotton layer, enhance softness, freshnessfourth layer: super absorbent polymer: lock in moisture, keeps surface dryfifthlayer: ultra soft cotton layer, enhance softness, freshnesssixth layer: breathable bottom layer:eliminate moisture and heat fast, keep you freshseventh layer: release paper; unique back adhesiveness conforms with human ergonomicsSkin Care, strong Respiratory System, Genito-Urinary System, Immune System, Strong ability of percolation rate, leak-proof, and water-lock, Good permeability of back,Anti-bacterial and anti-inflammatory.Our sanitary napkins use the advanced technology of special Anion core which create a healthy, comfortable and clean physical environment.Anion has the extraordinary bactericidal capacity. Normally speaking, the more anion in the air, the fewer bacteria survives. If the density of anion reaches a full amount the bacterium tends to zero. The accompany oxygen dissociation changes the anaerobic environment completely, promotes the conversion of enzyme, balances potential of hydrogen which may promote metabolism and improvement internal secretion.Negative Ion Sanitary napkins processing with pure physical therapy to promote microcirculation of the human body which having a postive effect on internal environment, metabolism, internal secretion, immunity, and anti-bacterial, as well as anti-inflammatory ability, reducing psychological pressure, eliminate smell and fatigue.