I bought Purex Natural Elements because on the bottle it says that it's hypoallergenic.  I began to feel burning and itching along my waist line, bra strap lines, and sock lines!  Anywhere that my clothes fit snug burned and/or itched to the point that I scratched until almost bleeding.  I rubbed and scratched over my clothes so I wouldn't break my skin so easily and my palms started to burn and itch!  Keep in mind, I've never been allergic to anything my entire life.  There has to be something in this detergent that isn't on the label.