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  • Optimum Nutrition Amino Energy + Hydration, Watermelon Splash, 62 Servings

Optimum Nutrition Amino Energy + Hydration, Watermelon Splash, 62 Servings

4.6 out of 5 stars (309)
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Brand Name Optimum Nutrition
Item Form Powder
Product Benefits Skin Hydrating
Age Range Description Adult
UPC 748927068337
Manufacturer Glanbia Performance Nutrition
Manufacturer Part Number 1139470
Best Sellers Rank
ASIN B0DDDQMG9Q
Customer Reviews
4.6 out of 5 stars (309)

4.6 out of 5 stars
Unit Count 20.77 Ounce
Item Weight 1.3 Pounds
Item Dimensions 4.94 x 4.94 x 5.25 inches
Number of Items 1

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Optimum Nutrition Amino Energy + Hydration, Watermelon Splash, 62 Servings

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Product specifications

Item details

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Important information

Ingredients

Magnesium, Chloride, Sodium, Potassium, Amino Blend (Micronized Taurine, Micronized L-Glutamine, Micronized L-Arginine, Micronized L-Leucine, Beta-Alanine, Micronized L-Citrulline, Micronized L-Isoleucine, Micronized L-Valine, Micronized L-Tyrosine, Micronized L-Histidine, Micronized L-Lysine Hydrochloride, Micronized L Phenylalanine, Micronized L-Threonine, Micronized L-Methionine). Electrolyte Blend: Sodium Chloride, Magnesium Oxide. Potassium Chloride. Caffeine, Green Tea Leaf Extract,. Green Coffee Bean Extract. OTHER INGREDIENTS: Natural and Artificial Flavor; Malic Acid; Citric Acid; Silicon Dioxide; Calcium Silicate Sucralose; Gum Blend (Cellulose Gum; Xanthan Gun Carrageenan); Tartaric Acid; Suntlower and/or Sovl Lecithin; Beet Juice Powder (color); Inulin. CONTAINS: SOY.

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.

Product Description

Get a good start to the day with Optimum Nutrition AMIN.O Energy & Electrolytes. Packed with caffeine and amino acids, this post-workout drink powder supports your energy levels, focus, and muscle recovery. Formulated with 100 mg of caffeine, this electrolyte powder delivers a customizable energy experience. It allows you to adjust the amount according to your routine, whether you need a kick-start in the morning, a pre-workout aid, or an afternoon pick-me-up. The 5 grams of amino acids aid in muscle recovery, helping you prepare for the next workout or daily challenge. Our amino acid and electrolyte powder keeps you hydrated. With its easy-to-mix powder form, you can enjoy a refreshing, nutritious drink anytime, anywhere. Whether you're a fitness enthusiast looking for a pre-workout supplement or a busy professional needing more focus, this amino acid and electrolyte powder can support you. Optimum Nutrition is part of the Glanbia global nutrition group and has been setting the Gold Standard in sports nutrition for more than 30 years — helping performance-focused athletes achieve their goals. We are proud to say that we are one of the few sports nutrition companies who own and operate our own production facilities. We take as much pride and care in crafting our award-winning supplements as our consumers do with crafting their fitness accomplishments.

Product details

  • Product Dimensions ‏ : ‎ 4.94 x 4.94 x 5.25 inches; 1.29 Pounds
  • Date First Available ‏ : ‎ August 16, 2024
  • Manufacturer ‏ : ‎ Glanbia Performance Nutrition
  • ASIN ‏ : ‎ B0DDDQMG9Q
  • Best Sellers Rank: #198,121 in Health & Household (See Top 100 in Health & Household)
  • Customer Reviews:
    4.6 out of 5 stars (309)
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Customer reviews

4.6 out of 5 stars
309 global ratings
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Customers say

Customers love the flavor of this energy supplement, with one noting it's not too sweet. The product provides sustained energy lasting up to 4 hours without jitters, and one customer mentions it's particularly effective for pre-workout and midday use. They find it to be of good quality.
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26 customers mention flavor, 25 positive, 1 negative
Customers love the flavor of this supplement, with one noting it's not too sweet.
I love these Amino Energy products. Great taste, affordable, and wide variety of flavors. Highly recommend!Read more
tastes good ,gives me the energy i needRead more
Tastes great and great qualityRead more
Love this, a must every day for me. I only like the watermelon flavor, tried the grape and could not get myself to try it a second time.Read more
18 customers mention energy, 18 positive, 0 negative
Customers appreciate the energy boost provided by this supplement, noting it keeps them focused for up to 4 hours without jitters, and one customer specifically recommends it for pre-workout or midday use.
...Would highly recommend! This does not give you the jitters, but energy!Read more
tastes good ,gives me the energy i needRead more
...It gives me a clean energy boost and I like knowing I’m getting some hydration and aminos along with it....Read more
One of my favorite products, keeps me energized without feeling like my heart is racing, great taste and can drink it anytime.Read more
16 customers mention quality, 16 positive, 0 negative
Customers find the supplement to be of good quality, with one mentioning it's a daily staple.
This is a great product because not only does it have all the essential amino acids for your body, but it has a green tea which is a wonderful...Read more
Love this stuff. Whether it's an early morning energy boost need or afternoon caffeine pick me up. This drink mix keeps me hydrated....Read more
Great StuffRead more
Good StuffRead more
8 customers mention effectiveness, 8 positive, 0 negative
Customers find the supplement effective, with one mentioning it helps them get through their workouts.
I have been using this every day for a few years. It works great.Read more
...I’m not drinking as much coffee in the mornings. It helps me get through my workouts. It tastes amazing too.Read more
...Definitely fills my energy and nutrition needs for workouts. Solid product all around.Read more
...Great job at to get a boost when you need itRead more
On second container
4 out of 5 stars
On second container
Love this product you get a decent amount compared to all the other companies who rip you off with less than had full containers
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Top reviews from the United States

  • gg
    5 out of 5 stars
    Great Tasting Easy Mix Energy and Hydration for Workouts
    Reviewed in the United States on July 10, 2025
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    I’ve been using Optimum Nutrition Amino Energy + Hydration for months now and I love it. It mixes super easy with no clumps and all the flavors taste great which isn’t always the case with workout supplements. It gives me a clean energy boost and I like knowing I’m getting some hydration and aminos along with it. Definitely fills my energy and nutrition needs for workouts. Solid product all around.

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  • Donna R
    5 out of 5 stars
    Tasty! Gives energy boost
    Reviewed in the United States on March 24, 2026
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    I like this brand. It used to be my first favorite, now it is my backup.

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  • Colton
    5 out of 5 stars
    Worth it
    Reviewed in the United States on December 27, 2025
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    Love this stuff! Talk about a great boost for your workout! Would highly recommend! This does not give you the jitters, but energy!

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  • Katie
    5 out of 5 stars
    Good energy.
    Reviewed in the United States on October 8, 2025
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    Full content visible, double tap to read brief content.

    I love this product. Gives you the energy you need. I’m not drinking as much coffee in the mornings. It helps me get through my workouts. It tastes amazing too.

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  • Elvia
    5 out of 5 stars
    Love the watermelon flavor
    Reviewed in the United States on January 20, 2026
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    Love this, a must every day for me. I only like the watermelon flavor, tried the grape and could not get myself to try it a second time.

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  • Ms M
    5 out of 5 stars
    Great product for your mind and body
    Reviewed in the United States on July 27, 2025
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    Full content visible, double tap to read brief content.

    This is a great product because not only does it have all the essential amino acids for your body, but it has a green tea which is a wonderful product for energy for your body. Long lasting and I have no side effects or stomach upsetting keeps you focused for at least 4 hours I've been using this for years🩷💛🩷

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  • Ember Hall
    4 out of 5 stars
    Flavorful & Effective
    Reviewed in the United States on March 16, 2025
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    pros: dissolves easily, taste like a watermelon jolly rancher & i noticed more definition within a couple weeks.

    cons: caused bloat & headaches the first week or so. The flavor is very strong. I switched from drinking it to just throwing back the scoop & washing it down with water.

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  • DRae
    5 out of 5 stars
    Great taste and a daily staple
    Reviewed in the United States on September 22, 2025
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    Used to buy this at Costco but they are never in stock! It’s a daily staple

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Product Summary: Optimum Nutrition Amino Energy + Hydration, Watermelon Splash, 62 Servings

From Optimum Nutrition

4.6 out of 5 stars, 309 ratings

Customer reviews

Price

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About this Item

  • Pre-Workout Powder with Amino Acids: This energy support drink contains 5 g of amino acids to support your muscle recovery after a workout
  • Customizable Caffeine Drink: This pre-workout powder provides 100 mg of caffeine from natural sources like coffee beans and tea leaves to support energy and focus
  • Electrolyte Powder for Adults: This electrolyte powder contains electrolytes to help replenish what is lost through sweat
  • Easily Dissolvable Powder: The energy powder easily mixes with cold water, offering you a refreshing drink anytime you need support, before, during, or after a workout
  • Available In 4 Flavors: Our amino energy powder comes in four delightful flavors, including a delicious watermelon splash flavor that will keep you refreshed

Product Description

Get a good start to the day with Optimum Nutrition AMIN.O Energy & Electrolytes. Packed with caffeine and amino acids, this post-workout drink powder supports your energy levels, focus, and muscle recovery. Formulated with 100 mg of caffeine, this electrolyte powder delivers a customizable energy experience. It allows you to adjust the amount according to your routine, whether you need a kick-start in the morning, a pre-workout aid, or an afternoon pick-me-up. The 5 grams of amino acids aid in muscle recovery, helping you prepare for the next workout or daily challenge. Our amino acid and electrolyte powder keeps you hydrated. With its easy-to-mix powder form, you can enjoy a refreshing, nutritious drink anytime, anywhere. Whether you're a fitness enthusiast looking for a pre-workout supplement or a busy professional needing more focus, this amino acid and electrolyte powder can support you. Optimum Nutrition is part of the Glanbia global nutrition group and has been setting the Gold Standard in sports nutrition for more than 30 years — helping performance-focused athletes achieve their goals. We are proud to say that we are one of the few sports nutrition companies who own and operate our own production facilities. We take as much pride and care in crafting our award-winning supplements as our consumers do with crafting their fitness accomplishments.

Important Information

Ingredients

Magnesium, Chloride, Sodium, Potassium, Amino Blend (Micronized Taurine, Micronized L-Glutamine, Micronized L-Arginine, Micronized L-Leucine, Beta-Alanine, Micronized L-Citrulline, Micronized L-Isoleucine, Micronized L-Valine, Micronized L-Tyrosine, Micronized L-Histidine, Micronized L-Lysine Hydrochloride, Micronized L Phenylalanine, Micronized L-Threonine, Micronized L-Methionine). Electrolyte Blend: Sodium Chloride, Magnesium Oxide. Potassium Chloride. Caffeine, Green Tea Leaf Extract,. Green Coffee Bean Extract. OTHER INGREDIENTS: Natural and Artificial Flavor; Malic Acid; Citric Acid; Silicon Dioxide; Calcium Silicate Sucralose; Gum Blend (Cellulose Gum; Xanthan Gun Carrageenan); Tartaric Acid; Suntlower and/or Sovl Lecithin; Beet Juice Powder (color); Inulin. CONTAINS: SOY.

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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