All 2X with Oxy-Active is another concentrated liquid detergent (no powder version available). The "Oxy Active" is a bleach alternative and stain lifter, said to remove grass, blood, wine and chocolate. It costs approximately $0.15 per load.
You might think you can use regular detergent in the HE washer -- just as long as you use less of it. After all, less soap means less suds, right? Unfortunately, testers have determined that simply using a smaller amount of the regular stuff won't do the trick. You must use HE detergents, which are designed to clean more effectively in low-water conditions.