I just recently bought 3 pairs. I have only worn them once and didn't notice anything. I will try again. I do have one question, why are they made in China? I really try not to purchase anything made in China for two reasons. The first being quality and the second being that a lot of things manufactured there are by slave labor. Even if they do help, I will not purchase any more, which I was going to if they worked I was going to get some for the whole family.
Bottom Line: No, I would not recommend this to a friend
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