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#3 in Amino Acids Third-Party Tested
Optimum Nutrition Amino Energy
by Optimum Nutrition
"Versatile amino acid + caffeine powder for energy, focus, and recovery"
Amazon Rating
4.5/5
Reviews
45,670
Price Range
$24.99 - $29.99
Servings
65
Informed SportGMP Certified
Our Editorial Rating
8.0
Very Good
Overview
Amino Energy is one of ON's most popular products, combining free-form amino acids with natural caffeine from green tea and green coffee. Each 2-scoop serving provides 5g amino acids and 100mg caffeine. The flexible dosing (1-3 scoops) makes it versatile for any time of day.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Amino Acid Blend | 5g (2 scoops) |
| Natural Caffeine | 100mg (2 scoops) |
| Green Tea Extract | Included |
3 ingredients linked to detailed encyclopedia profiles
Pros & Cons
What We Like
- 65 servings excellent value
- Flexible dosing
- Natural caffeine sources
- Versatile (pre-workout, afternoon energy, etc.)
What Could Be Better
- Amino acid doses are modest
- Proprietary amino blend
- Not a full EAA supplement
Who Is This For?
Best For
- Afternoon energy boost
- Light pre-workout
- Caffeine + amino combination
- Versatile daily use
Not Ideal For
- Those wanting full EAA doses
- Transparency seekers
Our Verdict
8.0/10 — Very Good
The most versatile amino acid product. The flexible dosing and natural caffeine make Amino Energy useful for any time of day.
Alternatives to Consider
No direct alternatives listed for this product yet.