Dazzle Assure uses a 3-tiered strategy to make pool water management simpler, easier and friendlier; 1) a more concentrated natural enzyme digests waste for an even deeper cleansing of pool water and surfaces, 2) stronger �all-natural� phosphate removers for reducing and controlling phosphate contamination for algae control, and 3) powerful clarifiers to add an amazing polish to your water for that �Dazzling� clarity you expect. All of this in a concentrated formula so you use less. Dazzle Assure is all about assuring performance. Improved and recommended as Step 2 of the Dazzle PureWow system of pool care. Simple, Easy, Friendly.