AquaSafe 90 uses ALL NATURAL SEAWEED ENZYMES to treat your spa and keep it clean, clear, and fresh for 3 months with out the use of toxic chemicals. AquaSafe 90 is an exciting advancement in water treatment. One bottle of AquaSafe 90 keeps your water clean, clear, and fresh for three months. AquaSafe 90 is non-toxic, easy to use, and economical. No more testing your tub everyday to make sure the chlorine and bromine are at the right levels. AquaSafe 90 won’t causes the rashes, itching, burning red eyes, and dry skin that chlorine and bromine do. With AquaSafe 90 there is no nasty chemical odour. You won't feel like your need to take a shower after you get out of your spa, your skin will be soft and silky smooth after each use. AquaSafe's seaweed enzyme formula breaks down bacteria and viruses in your spa dissolving them away, keeping your spa clean and clear for 3 months. Enzymes are used by cutting edge biochemists in the war against disease because they are so specific in what they attack. An enzyme can be absolutely deadly to some life forms and be completely safe, even beneficial, to others 100% none toxic to all living creatures and the environment Chemical FREE - Maintenance FREE • 100% bio-based, all natural Seaweed Enzymes • FREE from Chlorine or Bromine toxicity - completely bio-degradable and non-toxic to the environment • FREE from itching, rashes, dry skin & burning eyes • FREE from daily maintenance and testing - NO more test kits! • FREE from chemical smells • Save water, don’t waste a valuable asset - Drain your spa water directly onto your lawn or garden!