What can you tell me about Lipo6X and Lipo 6 Black from GNC?

I want to buy any of these products but I'm afraid of having problems with them. With problems I mean side effects that could affect my body or my performance.

I want to buy them because I want to reduce my corporal fat naturally at the gym but it's getting kind of difficult :D

Do you recommend me to buy any of these products or no?

Thx
 
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