NOW Foods · Rhodiola rosea · Capsules
Is NOW Foods Rhodiola 500 mg underdosed?
Verdict
500 mg per servingone dose · studies use 200 mg of Rhodiola rosea extract (3% rosavins, 1% salidroside)
Effective doseOne serving contains 500 mg; studies use 200 mg in one dose before training. The label's directions allow 1–2 servings a day.
One capsule gives 500 mg, enough on its own for the low end of what studies use (200 mg); it ranks 4th of 10 Rhodiola rosea supplements here by dose.
What the label says
- Rhodiola rosea extract (3% rosavins, 1% salidroside) per serving
- 500 mg in 1 capsule
- Servings a day
- 1–2 servings a day
- Rhodiola rosea extract (3% rosavins, 1% salidroside) a day, as directed
- 500 mg–1 g
- Research dose
- 200 mg Evidence: Weak
Suggested Usage: Take 1 capsule 1 to 2 times daily on an empty stomach.
More about Rhodiola rosea extract (3% rosavins, 1% salidroside): forms, timing and the studies behind the dose.
Same category, compared
All 10 Rhodiola rosea supplements we checked, ranked by dose (commission never changes the order). Studies use 200 mg of Rhodiola rosea extract (3% rosavins, 1% salidroside); servings counted to 200 mg.
| Product | Per serving | Servings to reach it | Form |
|---|---|---|---|
| Bluebonnet Rhodiola Rosea Root Extract | 250 mg | 1 or less | Capsules |
| Nature's Way Rhodiola 250 mg | 250 mg | 1 or less | Capsules |
| Nootropics Depot Rhodiola Rosea 3% Rosavins powder | 250 mg | 1 or less | Powders |
| NOW Foods Rhodiola 500 mg (this product) | 500 mg | 1 or less | Capsules |
| Nutricost Rhodiola Rosea 250 mg powder | 250 mg | 1 or less | Powders |
| Nutricost Rhodiola Rosea 500 mg | 500 mg | 1 or less | Capsules |
| Pure Nootropics Rhodiola Rosea 500 mg | 500 mg | 1 or less | Capsules |
| Solgar Rhodiola Root Extract | 250 mg | 1 or less | Capsules |
| Supersmart Rhodiola Rosea (Rhodiolife) | 600 mg | 1 or less | Capsules |
| Pure Encapsulations Rhodiola Rosea | 100 mg | 2 at once | Capsules |
Where the reference doses come from
- Rhodiola rosea extract (3% rosavins, 1% salidroside), 200 mg: De Bock et al., 2004; Tinsley et al., 2024; Wang et al., 2025.
- Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 314061, including its servings a day.
For a supplement taken as one dose we judge one serving, and show the most the label allows in a day. Read the full methodology or the corrections log.