Optimum Nutrition Micronized Creatine Capsules, 300 Capsules (150 Servings)
2.5 g of micronized creatine monohydrate in 2 capsules
$49.99
In stock · price checked November 12, 2026
Free shipping on orders over $35
75 doses of 5 g (4 capsules) · $0.67 per 5 g
Informed Choice
Named on the Informed Choice list, which tests for drugs banned in sport.
Buy nowOur take
These are Optimum Nutrition's creatine in gelatin capsules: 1.25 g each, so four capsules make 5 g.
Our capsule comparison shows how the capsule brands stack up.
Choose it if you want a big-brand capsule on a banned-substance testing list. Want NSF/ANSI 173 instead? Pristine's is on it at $25.99 (see below).
Key facts
| Creatine per capsule | 1.25 g |
|---|---|
| Label serving | Two capsules (2.5 g) a serving, 150 servings |
| Dose | 4 capsules = 5 g |
| Size | 300 capsules, which is 75 doses of 5 g |
| Form | Micronized creatine monohydrate; the 300-capsule label reads "100% creatine monohydrate" |
| Capsule | Gelatin; other ingredients gelatin and magnesium stearate |
| Testing | Informed Choice lists Micronized Creatine Capsules |
Common questions
How many Optimum Nutrition creatine capsules do I take?
The label serving is 2 capsules (2.5 g), and the directions on the 100-capsule label say 2 capsules with a meal twice a day. That is 4 capsules, or 5 g, a day.
Is Optimum Nutrition Micronized Creatine Capsules tested?
Yes, on Informed Choice. Its list names Optimum Nutrition Micronized Creatine Capsules, and Informed Choice tests products for drugs banned in sport. The pack also prints a "Banned Substance Tested" mark.
What is the capsule shell made of?
Gelatin. The other ingredients are gelatin and magnesium stearate, so the capsules are not vegetarian.
How far does a 300-capsule bottle go?
It holds 75 doses of 5 g. At $49.99 on November 12, 2026 that is $0.67 per dose. Pristine's gives 45 doses.
Why does the label say 150 servings?
A label serving is 2 capsules and 2.5 g, so 300 capsules make 150 servings. The directions on the 100-capsule label give two servings (4 capsules, 5 g) a day.
Other tested creatine
Pristine's Creatine Monohydrate Capsules, 300 capsules
$25.99 · NSF/ANSI 173 · $0.58 for 5 g, about 7 capsulesBuy now