Advantra Z is a patented extract of Citrus Aurantium (also called Bitter Orange). The active ingredient in Citrus Aurantium is Synephrine, which I reviewed in depth previously.

The short of it is that Advantra Z is one of the ingredients you’ll find in diet pills that is actually effective in aiding weight loss. Synephrine is a stimulant that does not cause the jitters of caffeine. Some make the claim that Syephrine is the “new ephedra”. There has been absolutely zero research documenting a synephrine effect equivalent to ephedra. Is Synephrine (Advantra Z) effective? Yes. But let’s not equate it to ephedra until we have some research to back it up.

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