Optimum Nutrition Essential Amino Energy Hydration Plus Focus Powder - Watermelon Splash - 30 Servings - 9.5oz
$20.99 ($2.09/ounce)
In Stock
Eligible for registries and wish lists
About this item
Additional product information and recommendations
Guests also viewed
$29.99
Buy 1, get 1 25% off select nutrition powders & more
4.8 out of 5 stars with 1039 ratings
$29.99
Buy 1, get 1 25% off select nutrition powders & more
4.7 out of 5 stars with 1361 ratings
Highly rated
$5.39 - $25.99
$15 Target GiftCard with $50 household items purchase
4.7 out of 5 stars with 24876 ratings
Highly rated
$33.99
Buy 1, get 1 25% off select nutrition powders & more
Optimum Nutrition Gold Standard 100% Whey Protein Powder - Strawberries & Cream - 22 Servings - 24oz
4.8 out of 5 stars with 931 ratings
Related Categories
Guests are saying
This amino energy hydration powder offers a delightful watermelon flavor that many guests find refreshing and easy to mix. It combines energy and hydration in one product, making it ideal for workouts or as a daily pick-me-up. Guests appreciate its smooth consistency and the absence of clumps, while the added electrolytes and amino acids enhance its effectiveness. Overall, it serves as a great option for those seeking a flavorful and energizing supplement.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.5 out of 5 stars with 279 reviews
flavor: 4.36 out of 5
quality: 4.12 out of 5
value: 3.88 out of 5
71% would recommend
21 recommendations
5 out of 5 stars
8 January, 2026
originally posted on influenster.com

Great in taste and efficiency!
[This review was collected as part of a promotion.] The smell and flavor of the amino energy is great! I do hope they make other flavors as watermelon isn’t my favorite. Not a large aftertaste which is a huge plus!
5 out of 5 stars
Thumbs down graphic, would not recommend
22 November, 2025Verified purchase
(no review title)
I use this product everyday - love it!!!
5 out of 5 stars
15 October, 2025
originally posted on optimumnutrition.com
Another great product from ON.
Yummy taste with an electric boost. Really helps me power through my workout.
5 out of 5 stars
12 October, 2025
originally posted on influenster.com

Delicious pre workout
[This review was collected as part of a promotion.] I loved this pre workout. Flavor is delicious, but male sure to put a lot of water. It’s easy to mix and gives you a boost of energy. It is also good after a workout.
5 out of 5 stars
3 October, 2025Verified purchase
Yummy
Great taste … helps cut coffee during the day
5 out of 5 stars
14 September, 2025
originally posted on influenster.com

Watermelon wave of energy!
[This review was collected as part of a promotion.] My husband loves this brand of aminos so when I saw this brand was an option for my campaigns I knew it was the perfect opportunity to try it out myself. This product incorporates energy and hydration making it a great value as it combine what would normally be two products. The watermelon flavor is delicious and mixes well. My husband even tried it and likes this upgraded version from the brand.
5 out of 5 stars
8 September, 2025
originally posted on influenster.com

Great
[This review was collected as part of a promotion.] I absolutely loved this product super easy to mix leaves no lumps or grits helps me alot after a good run or workout. Its taste like a jolly rancher super delicious Great ingredients no jitters. Definitely would recommend.
4 out of 5 stars
2 September, 2025
originally posted on influenster.com

Not the worst but not my favorite
[This review was collected as part of a promotion.] This hydration and energy mix is pretty good. I find it mixes really well without leaving chunks of powder. You can tell it has caffeine because it definitely perked me up after drinking it. Nothing crazy but noticable. Flavor wise I was not a huge fan, if you like that sweet overly fake watermelon flavor this may be for you. Reminded me of a watermelon jolly rancher flavor.
4 out of 5 stars
27 August, 2025
originally posted on influenster.com

Good product bad packaging
[This review was collected as part of a promotion.] This loses a store because of the packaging. That is why this picture is what I have submitted. The container was almost impossible to screw shut. Powder went everywhere. But now to talk about the product itself. I used it several times before my strength workout. I found that it gave me energy and kept me hydrated. I would purchase this again in the future.
5 out of 5 stars
27 August, 2025
originally posted on influenster.com

Super tasty, easy to mix and gives me great workou
[This review was collected as part of a promotion.] What is in this magic drink?! I mean there is definitely a list of things (ingredient list pictured), but none of it specifies that it’s basically pre-workout without the weird skin crawling itch. Taste is so good and it mixes in super easy (I just use a straw, no fancy mixer required). I will definitely be purchasing again!!
1 reply from Optimum Nutrition team - 7 months ago
Try a new flavor next time and let us know what you think! 😍
4 out of 5 stars
23 August, 2025
originally posted on influenster.com

Good for hydration
[This review was collected as part of a promotion.] Optimum nutrition, amino, energy, watermelon, splash hydration powder is great for those super hot days when water doesn't feel like it's doing enough. Having the added green tea, extract and green coffee, bean extract really helps with some added energy.
1 reply from Optimum Nutrition team - 7 months ago
Take on the summer heat with a tub of Amino Energy! ☀️
4 out of 5 stars
23 August, 2025
originally posted on influenster.com

Okay, but wouldn’t buy
[This review was collected as part of a promotion.] The powder has a good flavor, but it is too powdery. It’s really hard to mix with a spoon…with it being so dry, it clumps together once you add it to water. I prefer a more refined powder. Not tested for heavy metals I believe, so that may be something to look into.
5 out of 5 stars
22 August, 2025
originally posted on influenster.com

Great Pre-Workout!
[This review was collected as part of a promotion.] The Optimum Nutrition AMIN.O, have a great taste, good quality ingredients, it’s easy to mix and provides lots of energy and hydration to help you focus on your workout. The best value; Go get it!
3 out of 5 stars
22 August, 2025
originally posted on influenster.com

Not a pick me up, dissolves easily
[This review was collected as part of a promotion.] Definitely gives the energy your looking for however I would not use it as a pick me. I tried to only because I took a break from the gym and this gave the itchy/jittery effect and needed to go for run or something. lol mixes well and tastes like a diet watermelon drink with a bit of tart to it.
4 out of 5 stars
21 August, 2025
originally posted on influenster.com

Watermelon, but with benefits
[This review was collected as part of a promotion.] Am I a skeptic when it comes to powders and supplements? Of course. I have been scarred before. But this? One sip and I was flabbergasted at how smooth and bright the flavor was. The package itself is great, easy to screw on the lid, and the little scoop being provided was helpful (not every powdered supplement does this, so count your blessings). It blended up wonderfully with my frother in half the amount of time suggested. As for the taste, it reminds me of a watermelon Jolly Rancher, with a slight fake-sugar aftertaste (the only reason I'll dock a star, as sucralose isn't my favorite). Honestly though, it's not bad and this powder comes with a plethora of benefits from electrolytes to amino acids that are great for those looking to boost their energy and recovery after workouts Would I consider buying this? Yes, I would. If you're someone in the market for a great pre-workout drink that boasts more perks than just caffeine, ON's Essential Amino Energy is a great place to start!
4 out of 5 stars
17 August, 2025
originally posted on influenster.com

Refreshing Energy with a Twist
[This review was collected as part of a promotion.] As someone new to working out, I’ve found Optimum Nutrition Amin.o. Energy+ in Watermelon Slash is really helpful. It gives me just the right amount of clean energy without feeling overwhelmed. The flavor isn’t overly sweet and doesn’t taste exactly like watermelon, but it’s refreshing and easy to sip on before getting into my routine.
4 out of 5 stars
16 August, 2025
originally posted on influenster.com

Love this mix, the best watermelon flavor by far!
[This review was collected as part of a promotion.] I use powdered amino acids/pre workout daily, so I was excited to recieve this product. The taste is phenomenal, they nailed a true jolly rancher watermelon without being too sweet & just the right amount of tartness. I dont notice it at first, but as I drink on the mix does get that chalky taste/feeling at the end. For the value, its definitely worth it. The size is generous & it did give me a great bout of energy.
4 out of 5 stars
16 August, 2025
originally posted on influenster.com

Great
[This review was collected as part of a promotion.] This tastes like watermelon and dissolves easily in my water. It gives me lasting energy all day long. I really like this product and would recommend.
5 out of 5 stars
10 August, 2025
originally posted on influenster.com

A great product.
[This review was collected as part of a promotion.] Such a great product! I love the amount you get. It’s easy to use and it tastes great. This gave me so much energy, and it didn’t take long for it to kick in, either. Instructions are easy and it’s also very easy to store! Didn’t get a headache or anything like I usually do after using energy products. I just mix mine with water, so I can’t speak for the taste mixed with anything else!
1 reply from Optimum Nutrition team - 8 months ago
For a little variety, try mixing Amino Energy with carbonated water or a juice!
5 out of 5 stars
10 August, 2025
originally posted on influenster.com

Works well
[This review was collected as part of a promotion.] Works super well! I use this before a work out. I take it about an hour prior and it’s a nice replacement for me for pre workout. It doesn’t taste bad. And it doesn’t leave a bad after taste in your mouth either.
1 reply from Optimum Nutrition team - 8 months ago
Whether you need a small energy boost or preworkout, Amino Energy can do it all!