I was looking recently and Clorox didn't say what the concentration was. Looked on the internet and Clorox site, msds and all it said was 5%-10% (trade secret). So I assumed they were 5%-6%. Wound up buying Crystal at Menards (8.25%), about $2.50/gal. after learning my lesson with Dollar Tree's "bottled water" passing for bleach.

I have had good results with meijer regular bleach. Others, not so much. I might have to look into crystal.

I forgot to mention that the bottle discusses how it keeps whites whiter than Clorox bleach (subscript) 1