We used to get the real thing at Wal-Mart here in West Texas and then Wal-Mart removed all Mexican detergents, including Ariel, for a while. I just saw it on the shelves the other day again at Wal-Mart, and after carefully reading the ingredients I realized that it had no phosphates. It even specifically stated that it was made in the United States and for the United States.
P&G tried this a few years ago, packaging something they called "Ariel" into a box. The actual powder itself resembled Tide w/ Bleach, but it cleaned very poorly. I suppose it wasn't very popular and soon disappeared. Perhaps they believe that if they put it in a bag and make it look like Mexican Ariel that people will be fooled into buying it?
Fortunately here in the Southwest we have a couple of grocers who still stock the original Mexican products. I found the original Mexican Ariel at Lowe's Supermarket in Lubbock just the other day, along with Foca and Roma and others. And for that I am very thankful!