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Essential AMIN.O. Energy

  • For anytime energy and improved focus*
  • Supports amino acid intake with 5 g of amino acids per serving
  • 100 mg of Caffeine

Product Overview


With Optimum Nutrition ESSENTIAL AMIN.O. ENERGY you can get the energy + focus to achieve your goals and take on whatever life throws at you. ESSENTIAL AMINO ENERGY is scientifically designed to support your energy needs and your long-term training.

One serving of ESSENTIAL AMIN.O ENERGY increases energy and alertness with 100 mg of caffeine from natural sources and a burst of flavour you’ll look forward to mixing into cold water anytime.Take a 30-serving tub along to the gym or your office – wherever your busy day takes you.


Ready-to-mix Amino Acid Food Supplement Powder with Caffeine and Vitamin C, with sweeteners.

*Vitamin C contributes to normal energy-yielding metabolism. Caffeine contributes
to increased alertness and improved concentration.


  • 5 g of Amino Acids per serving

  • 100 mg of Caffeine
  • Vitamin C
  • Anytime Energy
  • Improved Focus

Suggested Use

Add 2 level scoops (9 g) to 330 ml of cold water and mix.

*Food supplements are not to be used as a substitute for a varied diet. Do not exceed the recommended daily dose. Keep out of reach of children. Contains caffeine (100 mg/serving). Not recommended for children or pregnant women.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Overall Rating (4.8)
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Great Product

Review by Anonymous on Jun 17, 2024
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Highly Recommend

A great new flavour.

Review by Stuart on Jun 12, 2024
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I really like the new cherry candy flavour. I've tried a lot of different flavours so far and this is one of my favourites.


Review by Robert on Jun 10, 2024
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Great product. I will buy it again.

Candy flavour

Review by Dal on May 27, 2024
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Wow definitely my fave amino flavour 5/5 this and strawberries and lime are immense!


Review by Mat on Apr 7, 2024
This stuff is awesome I have it after working 8 has on cars about 15min before gym session and I go from tired to energised ,way better than redbull and energy crap drink.

Great choice

Review by Amin on Apr 3, 2024
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it is a great item for everyday use to keep the energy up and fight the fatigue


Review by Egle on Mar 14, 2024
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Top production

Have always returned to them.

Review by Aurel P. on Mar 2, 2024
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Great product and service.

Very good

Review by Liam on Feb 6, 2024
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I don't eat early morning before training and I find the AA in this product do a good job in preventing further protein breakdown after a night of 'fasting'. The caffeine content is just right to give the boost of energy I need to get through my leg day which is when I use it.

Amino energy

Review by Jax on Dec 19, 2023
Verified purchase
Excellent product better than all preworkouts I have taken

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