Stacker2 Stacker 4

Stacker 4 is a popular dietary supplement known as a fat burner, manufactured by Stacker2. Originally developed in the United States by NVE Pharmaceuticals, the brand became famous for its thermogenic products. While the label indicates it is 'Made in USA,' for the European market, the brand is often managed and distributed by Stacker2 Europe BV, headquartered in the Netherlands.

The Stacker2 brand has a long history in the sports nutrition industry, emerging from the United States with a focus on weight loss and energy-boosting supplements. Today, the brand's products are widely available globally, with NVE Pharmaceuticals remaining the core developer and ultimate owner behind the brand's formulations and intellectual property.