Essential AmiN.O. Energy
Optimum Nutrition

Essential AmiN.O. Energy

Aminoácido em pó para aumento da energia*
Treino mais longo e mais vigoroso com energia e foco intensos*
9.1  out of 10  (2,462 Reviews)
Buy 1 Get 1 50% Off
For a limited time, buy 1 Essential AmiN.O. Energy, 30 Servings & get 1 50% Off!

Product Overview

Optimum Nutrition. Anytime Energy and Amino Acid Support
Optimum Nutrition Essential Amino Energy


  • Choose from:
    12 Fruit Flavors
    3 Cafè Series Flavors
    4 Naturally Flavored Options
  • All with 100 MG Caffeine from Natural Sources & 5 G Micronized Free Form Amino Acids
  • Consistently One of’s Top Products
  • Made in ON Operated Facilities that are GMP Registered and GMP for Sport by NSF
Optimum Nutrition Isolate
Amino Energy at a glance. What: Caffeine and Amino Acids. When: Anytime, for any occasion. Why: High Quality Food Supplement.
Concord Grape Blue Raspberry Fruit Punch Green Apple Lemon Lime Orange Cooler Strawberry Lime Watermelon Blueberry Mojito Flavor Pineapple Peach Lemonade Peach Lemonade


Iced Cafe Vanilla Iced Chai Tea Iced Mocha Cappuccino


Iced Mocha Cappuccino Iced Mocha Cappuccino Iced Mocha Cappuccino Iced Mocha Cappuccino


Half & Half Lemonade & Iced Tea Sweet Mint Tea White Peach Tea Raspberry Black Tea
ON Essential Amino Energy bottle image
ON Essential Amino Energy bottle image


  • Sweetened With Stevia Leaf Extract
  • Colored with Fruit and Vegetable Extract


  • Made with Real Colombian Coffee
  • Great Mixed In Cold Milk
Optimum Nutrition essential Amino bottles

True Strength is a journey. It never rests, it never quits. It's about overcoming obstacles, accomplishing goals, and recognizing achievements. And then it resets to achieve again. As your trusted sports nutrition partner in goal achievement, ON demonstrates that same passion while crafting our products. From the raw materials we source to our state-of-the-art manufacturing processes, no compromises are made. You set the bar higher after every workout, we set the bar higher to redefine the industry standards and ensure you realize optimum results.


There are times when you want a hefty dose of caffeine for pre-workout performance. But on other occasions, like first thing in the morning or a late afternoon pick-me-up, what you’d get from a cup of coffee is more appropriate. ON’s Essential Amino Energy™ offers the best of both with a formula that delivers 100mg of caffeine from natural sources per 2-scoop serving. Decrease or increase the energy level as the occasion demands. Each serving provides 5 grams of micronized amino acids.

Optimum Nutrition Essential Amino Energy

Optimum Nutrition has been spotting the efforts of goal driven individuals since 1986. As one of the few companies to operate state-of-the-art manufacturing facilities that are GMP compliant, ON assures that every shake will mix up effortlessly because of its first-to-market instantization process. You also expect each shake to taste the same as the last and your next. That's the kind of consistency ON delivers.


Optimum Nutrition is legendary for both quality and innovation. In addition to producing the world's best-selling whey protein, ON's Gold Standard 100% Casein™ introduced slow-digesting nighttime protein to the weight training world and Essential Amino Energy™ created the anytime energy category in sports nutrition. When technology makes advancements possible, ON will be the company bringing it first to your shaker cup.

Ratings & Reviews

Overall Rating
2,462 Ratings
Verified Buyer Rating
1,411 Ratings
Average Flavor Rating
33 Flavors
Top Rated Flavor
Lime Mint Mojito
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Feb 21, 2019
  • 10 Orange Cooler
  • 10 Blue Raspberry

I will not start my day without this stuff. It makes all the difference in the world. Since I’ve started drinking this every day is a good day. Been drinking this for about 3 years.

Feb 08, 2019
Verified Buyer
  • 10 Juicy Strawberry Burst

I love this product. I only use one scoop in the morning and it changes my whole day I’m more alert and I feel amazing. Strawberry burst is a really good flavor it’s a treat for my taste buds. I wish I had an unlimited supply

Feb 03, 2019
  • 1 Naturally Flavored Simply Watermelon

I've used ON BCAAs before and like them, the natural flavors were on sale and I generally like the idea of natural flavors, but this stuff is terrible. It tastes like cough syrup and I have to force each sip. The product itself is fine, the BCAAs help with soreness and the added caffeine gives your workout a nice boost but do NOT get this flavor.

Jan 24, 2019
Verified Buyer
  • 10 Juicy Strawberry Burst
  • 9 Concord Grape
  • 5 Fruit Fusion

Love this product! I don't drink coffee - don't like the taste. So it's great to have something as a pick me up in the mornings before work. I am very caffeine sensitive and this doesn't make me jittery or crash. I can add an additional scoop before a workout and I am good to go! Love the Strawberry flavor - I wish that came in a larger version! The grape is DELICIOUS and I always have a large canister of that on hand. The fruit fusion isn't awful but for some reason it reminds me of soap.

Jan 08, 2019
Verified Buyer
  • 10 Raspberry Black Tea

If it's your first time using this product or you're looking for a flavor switch, this one is THE BEST.

Jan 05, 2019
Verified Buyer
  • 10 Blue Raspberry
  • 8 Juicy Strawberry Burst
  • 6 Cotton Candy
  • 2 Naturally Flavored Simply Raspberry Lemonade
Dec 31, 2018
Verified Buyer
  • 9 Orange Cooler
  • 9 Watermelon

Good BCAA, take it before, during and after workouts. On off days its a night little pick em up with100mg caffeine. Definitely good value.

Dec 11, 2018
  • 10 Fruit Fusion
  • 9 Watermelon

Use this product every morning before I hit the gym. Gives me tons of energy!

Dec 09, 2018
Verified Buyer
  • 10 Cotton Candy

Today was my first day using this product and I was thoroughly impressed by the taste. I am a huge fan of Italian ice and this flavor reminds me of eating one. This product was good for helping my muscles recover after an intense workout.

Nov 29, 2018
Verified Buyer
  • 10 Raspberry Black Tea

Best. Flavor. Ever.

Nov 27, 2018
Verified Buyer
  • 7 Iced Chai Tea Latte
  • 10 Pineapple
  • 9 Watermelon
  • 7 Iced Cafe Vanilla
  • 9 Blue Raspberry

I would say to pick the flavor that you think you're going to like best and you're probably right. I honestly can't believe grape is rated so high here because it tastes like pure medicine, but to each his own...I find Pineapple to be tasty and refreshing, and the Chai and Coffee flavors are a But when you're tired of all these fruity flavored BCAAs they're a nice way to mix it up.

Nov 23, 2018
Verified Buyer
  • 10 Iced Mocha Cappuccino

Amazing taste. I've tried several and I love them all! Iced mocha cappuccino is my favorite so far. I use this as a morning pick up as well as a pre workout mixed w my ON coffee flavored protein. Tastes great and has all the pre workout and post workout recovery I need. I mix it w milk.

Nov 18, 2018
  • 8 Green Apple

LOVE this product, gives a nice 'pick me up' energy and helps me recover faster than i normally would but with all that being said, the green apple flavor is more like a sour apple candy flavor so if you don't like sour flavors than please try a different one and the main reason i rated this an 8 is because of the unnecessary artificial color.. besides that this product is fantastic.

Oct 19, 2018
  • 10 Strawberry Lime
  • 1 Iced Mocha Cappuccino

Strawberry Lime has interesting taste. It is a little bit sweat and taste does not bother. Iced Mocha Cappuccino - the most terrible flavor, which I have ever tested. It smells like coffee, bitter disgusting taste. I do not recommend it to anyone. I think from 100 people maybe only 1 will like it. It is so terrible that I wish to drink it as fast as I can.

Sep 28, 2018
Verified Buyer
  • 10 Watermelon
  • 10 White Peach Tea

This products helps me kick start my day with the caffeine and beta-alanine. I replaced coffee with this product because the energy feels smoother and overall easier to digest. I was impressed with the white peach tea flavor. As someone who likes to drink tea it is refreshing to have my aminos and caffeine under a tea flavor to sip in the morning or during any daily activity. I mainly get this product for the focus it gives me.

7 Sizes
30 porções
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8 Flavors
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Price: $18.99  ($0.63 / Serving)
Flavor Rating: 8.5
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What's in Optimum Nutrition Essential AmiN.O. Energy

30 Servings Blue Raspberry
Supplement Facts
Serving SizeTwoScoops(9g)
Servings Per Container30
Amount Per Serving % Daily Value
Calories 10
Total Carbohydrate 2g 1%*
Amino Blend 5g
Micronized Taurine, Micronized L-Glutamine, Micronized L-Arginine, Micronized L-Leucine, CarnoSyn® Beta-Alanine, Micronized Citrulline, Micronized L-Isoleucine, Micronized L-Valine, Micronized L-Tyrosine, Micronized L-Histidine, Micronized L-Lysine, Micronized L-Phenylalanine, Micronized L-Threonine, Micronized L-Methionine
Energy Blend 160mg
Caffeine (From Green Tea)‡, Green Tea Extract (Camellia Sinensis)(Leaf)(Standardized For EGCG), Green Coffee Extract
* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.
Other Ingredients:
Malic Acid, Natural & Artificial Flavors, Tartaric Acid, Silicon Dioxide, Calcium Silicate, Citric Acid, Sucralose, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, FD&C Blue #2, FD&C Red #40, Inulin.
Allergen Information:
Contains Soy (Lecithin)
‡ Total Caffeine from all sources is equal to 100mg/9g serving.

Instruções de Essential AmiN.O. Energy:

Misture duas medidas de ESSENTIAL AMINO ENERGY em 300-360 ml de água fria.

PARA INTENSIFICAR SEUS AMINOÁCIDOS: Consuma uma ou mais porções antes de ingerir qualquer alimento na parte da manhã e/ou entre as refeições.
PARA ENERGIA PRÉ-TREINO: Tome 1-3 porções 20-30 minutos antes do treino.
PARA RECUPERAÇÃO PÓS-TREINO: Tome 1-2 porções imediatamente após o treino.

DICAS: O ESSENTIAL AMINO ENERGY contém 50 mg de cafeína por colher, por isso não consuma após 17:00 se você tiver dificuldade para dormir. O ESSENTIAL AMINO ENERGY também contém beta-alanina e pode causar formigamento temporário na pele. Isso é normal. Com o uso continuado, a intensidade da sensação irá diminuir ou desaparecer.

Advertências: MANTENHA FORA DO ALCANCE DE CRIANÇAS. Consulte um profissional de saúde antes de tomar esse produto se você estiver grávida, amamentando, tiver menos de 18 anos de idade ou se você tiver qualquer condição médica conhecida ou suspeita e/ou usar qualquer medicamento sujeito a receita médica ou de venda livre.

* Essas afirmações não foram avaliadas pelo Food and Drug Administration. Este produto não é voltado ao diagnóstico, tratamento, cura ou prevenção de nenhuma doença.
Learn more about Aminoácidos.