Our Active Nutrition Brands

Explore all of our brands to learn more about our industry leading products


For nearly two decades, the MuscleTech® brand has launched industry-defining product innovations that have helped bodybuilders and athletes achieve their goals. With cutting-edge formulas engineered by an elite team of researchers, MuscleTech® continues to provide the most premium supplements in the world. It continues to be the #1 selling bodybuilding supplement brand in America† since 2006, and with distribution in over 80 countries, is one of the most prominent sports nutrition brands worldwide.

The MuscleTech family was expanded significantly with the launch of the Pro Series, SX-7 and Essential Series. The new SX-7 series of products is an exciting GNC exclusive line that delivers the most advanced super extreme formulas available. The Essential Series was voted as 2014’s most innovative brand of year at Bodybuilding.com and makes it easy for you to personalize and enhance your existing supplementation with scientifically validated solo ingredient-based formulas. This new line has raised the bar for what it means to be best-in-class.

† The MuscleTech® brand of supplements is America’s #1 Selling bodybuilding supplement brand based on cumulative wholesale dollar sales 2006-present.



Six Star® is one of the leading sport supplement brands in America. This scientifically designed line of premium supplements is formulated with precision-dosed key ingredients backed by respected scientific research. For years, the complete line of Six Star supplements has helped athletes of all levels build muscle, increase strength, and enhance performance, helping them to achieve their goals. Six Star® represents the pinnacle of incredible quality AND unbeatable value.

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