GU Energy Labs is a famous outdoor manufacturer that was founded in 1991 by Bill Vaughan. The company’s headquarters are located in Berkeley, California, United States. GU is the leading brand that is known for its performance sports nutrition products, especially energy gels. The company produces easily digested energy gels that are usually consumed during an outdoor activity that boosts your endurance and performance. In addition to energy gels, GU also provides hydration drink tabs to keep you hydrated in hiking, trekking, and outdoor adventure trips.