I read the ingredients in
Lipo-6X and those "Thyroid Stimulating" and this is what I found if it helps.
Phenylethylamine
R-Beta-Methylphenylethylamine
N-Methyl-B-Phenlethylamine
These ingredients help to suppress hunger. Could possibly affect the Thyroid since the thyroid influences the metabolism.
TyramineHordenine
These increase norepinephrine which is your "fight-or-flight" hormone. This will increase your heart rate which will burn more calories for you.
Chance is yours though. Consult a doctor or pharmacist that might know more about these chemicals.