Spa Platinum Pro Spa monthly: It is a proprietary blended formula of natural ingredients that naturally solves spa water treatment problems while dramatically reducing spa maintenance and sanitizer demand. Spa Monthly contains all pure organic compounds. That is naturally attracted to contaminants and mineral in the water. The Natural flocking agents attract dirt, body oils, lotion, etc? taking it to the filter. This natural flocking action keeps your spa water crystal clear for a full month. Biodegradable Non toxic No phosphate No chlorine Fragrance and dye free No VOCs or petrochemicals Made from all natural raw ingredients Eliminates chemical smells in pool water Silky soft water and skin, no irritation. Keep water crystal clear and skin silky soft Made in the USA Fragrance Free Size: 8 FL Oz/235 ml X 6