Replenish electrolytes, restore balance, and power through your toughest days with Hydra-Charge—a sugar-free electrolyte mix enhanced with SPECTRA antioxidants and taurine for total hydration and performance support.

Salty by design! It provides crash-free energy, improves cognitive function, and increases strength & power. It supports muscle recovery.

Salt drives hydration. We use Earth's finest, for those who demand more from water. Instant Hydration Supports: Cellular health, athletic performance, everyday energy, recharge, focus and clarity. Hydration happens on a cellular level, everything else is just drinking.

• Essential amino acid delivery
• Supports energy, focus, and muscle recovery
• Promotes nitric oxide production
• Caffeine derived from natural sources
• Blueberry Lemonade flavor

Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids—plus 100mg of caffeine to promote energy and focus.

Frequently Asked Questions

What are essential amino acids?

Essential amino acids (EAAs) are amino acids that your body can’t produce enough of on its own, including leucine, isoleucine, valine, histidine, lysine, methionine, phenylalanine, threonine, and tryptophan. EAAs support muscle growth and recovery.

What are micronized free-form amino acids?

Micronized free-form amino acids are single amino acids that are already in a pre-digested form for faster absorption by the body.

Why is nitric oxide important?

Nitric oxide plays a key role in exercise endurance because it’s a vasodilator. A vasodilator is a substance that supports the dilation of blood vessels for increased blood flow.