• Essential amino acid delivery
• Supports energy, focus, and muscle recovery
• Promotes nitric oxide production
• Caffeine derived from natural sources
• Fruit Fusion 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.

• Essential amino acid delivery
• Supports energy, focus, and muscle recovery
• Promotes nitric oxide production
• Caffeine derived from natural sources
• Orange Cooler 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.

• 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.

• Essential amino acid delivery & electrolyte support
• Supports energy, focus, muscle recovery
• Caffeine derived from natural sources
• Watermelon Splash flavor

Looking for the perfect pre-workout boost or anytime pick-me-up? ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES by Optimum Nutrition supports muscle recovery before, during, and after exercise with 5g of micronized free-form amino acids. BONUS: it’s got 100mg of caffeine for energy and 440mg of electrolytes to help replenish what’s lost with sweat.

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.