This is a Silly Product, IMHO
I've seen the commercials for this product, and good grief. This is a superfluous product....weakend, buffered bleach. *rolls eyes*
For 25 years now, I have:
1)Bought whatever 5.25% bleach was on sale cheap.
2)Diluted it with a quart or more of water.
3)Added it about 5 minutes after the wash cycle begins.
4)Used it judiciously, only on stained white or colorfast items (no non-colorfast, wool, silk, or spandex).
Interestingly, in this entire time, I have had nothing but white whites, and stains removed the first time, with no fading or fabric deterioration.
LOL...amazing how well reading the directions works.
