I've had no problem with the dye coming off the jeans whatsoever. After realizing that it's vinegar that helps 'set' the dye in (at least that's the impression I got), I remembered that I had a small bag of fancy laundry soap that someone had given me as a gift - and that it had vinegar in it.
Here's the one I have:
http://www.scrubnaturally.com/.....ndry-soap/
I have the lavender scent (not overpowering at all), and took a chance that this fancy laundry soap might do the trick, and it totally worked. No dye has ever come off my jeans. I washed the jeans in my HE washing machine on the 'hand wash' setting with the 'extra rinse' button selected as well. Hung them up to dry and they've been perfect. These days, I wash the jeans on regular wash (cold/cold), and simply hang them up to dry. I never add fabric softener or anything - just this fancy laundry soap and cold water. I do turn the jeans inside out...and they have not faded one bit, and no blue dye has ever transferred anywhere. YAY!
I'm thinking there must be similar products around ...look for some laundry soap that has vinegar in it, choose cold/cold, and hang to dry and it should work beautifully.
editing to add: I still really like these jeans, and went back to Target to buy two more pairs. Looking forward to being able to wear them sometimes even in summer because they're not typical heavy-weight jeans. The Mossimo premium jeans are nice and lightweight - did you notice the same thing?
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