Not very: Don't get your hopes up or spend much money on stuff like this. There's no law against promoting these in glitzy "natural healing" sites. It may work. You will probably just be out the money.
Answered 12/10/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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