Losing weight safely usually means striking a balance between losing what you don't want -- fat -- and keeping what you need -- muscle tissue.

Most weight-loss supplements tend to make you lose both fat and muscle. With the introduction of Advantra Z&trade, only the fat goes, not the muscle.

For thousand of years the Chinese herb zhi shi, commonly known as Citrus Aurantium or "bitter orange," has been used by to stimulate healing.

Now, new technology has found that Advantra Z&trade, a unique formula derived from Citrus Aurantium, contains a rare composition of five amines that are essential for switching your metabolism into a fat-burning mode. Unlike ma huang, or controversial prescription drugs like Fen Phen, Xenical, and Orlistat, Advantra Z&trade has no potential side effects when used properly.

Advantra Z&trade dramatically aids in the breakdown of fat in your body. It increases your metabolic rate to burn calories, and when used in conjunction with a balanced diet and exercise, it not only accelerates weight reduction, but also helps replace lumpy fat with sleek, powerful muscle.

Advantra Z&trade is currently available at most natural health food stores and is marketed by Pinnacle, and Twin Labs, Inc.