








⚡ Power your day, recover like a pro, stay hydrated in style!
Optimum Nutrition Essential AMIN.O Energy & Electrolytes is a watermelon-flavored powder designed for adults seeking enhanced energy, focus, hydration, and muscle recovery. Featuring 100 mg caffeine and 5 g amino acids per serving, it replenishes electrolytes lost through sweat and supports post-workout recovery. Ideal for runners and fitness enthusiasts, this easy-to-mix supplement offers customizable energy and hydration anytime, backed by over 30 years of Optimum Nutrition’s trusted expertise.
| Product Name | VITAMINS |
| Additives | Amino Acid |
| Units | 684 Grams |
| Serving Recommendation | One Scoop |
| Brand | Optimum Nutrition |
| Format | Powder |
| Age Range Description | Adult |
R**A
Really works
I like the taste of the watermelon flavor. At a high enough dosage, I get the “tingles” in my hands and feet. Seems like it’s really working at that point. Not jittery, just tingly. I get good, focused energy and it provides a nice kick for intense workouts. Been using it for over a year.
C**Z
Great product
Great taste and good energy for all workouts
D**S
Quality
I have been drinking ON flavors for that little end of shift pick up at work or at home if I want focus and drive to get tasks done on days off. I enjoy the flavor and no jitters. I am an ON customer!
Y**Y
Works
I Love The Watermelon Flavor. Makes me drink lots of water throughout the day and helps me after a workout. We just give you energy.
L**R
My all time favorite!
Seriously the best energy powder I’ve tried and I love the price! The lower carb count has been a huge blessing in my Keto journey helping me to stay energized and keeps my carbs low each day. The only energy drink I’ll buy now!
Trustpilot
3 days ago
1 month ago