The World's #1 BCAA Brand

Refuel. Repair. Recover.

As the makers of America's best-selling pre-workout brand C4® and the world's #1 BCAA brand XTEND®, Nutrabolt has been committed to making fitness accessible to all since 2002. For over 10 years, XTEND® has been making the best recovery products in the world. The award-winning XTEND® formula is powered by 7 grams of branched chain amino acids (BCAAs), which have been clinically shown to support muscle repair, recovery, and growth. Whatever your fitness goal, training style, or sport of choice, XTEND® can help you train harder, recover faster, and get back in the game sooner.