Pure Encapsulations · Rhodiola rosea · Capsules

Is Pure Encapsulations Rhodiola Rosea underdosed?

1 serving = 1 capsuleDirections: 1–2 servings a dayLabel as of 22 Nov 2022 · NIH DSLD

Verdict

100 mg per servingone dose · studies use 200 mg of Rhodiola rosea extract (3% rosavins, 1% salidroside)

Below research dose

One serving contains 100 mg; studies use 200 mg in one dose before training. The label's directions allow 1–2 servings a day.

One capsule gives 100 mg, so reaching the low end of what studies use (200 mg) takes 2 capsules at once; it ranks 10th of 10 Rhodiola rosea supplements here by dose.

To reach the research dose. It would take 2 capsules at once (200 mg) to reach the 200 mg studies use.

What the label says

Rhodiola rosea extract (3% rosavins, 1% salidroside) per serving
100 mg in 1 capsule
Servings a day
1–2 servings a day
Rhodiola rosea extract (3% rosavins, 1% salidroside) a day, as directed
100–200 mg
Research dose
200 mg Evidence: Weak
Recommendations: As a dietary supplement, take 1 capsule, 1-2 times daily, between meals.
The label's directions, as printed.

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.

ProductPer servingServings to reach itForm
Bluebonnet Rhodiola Rosea Root Extract250 mg1 or lessCapsules
Nature's Way Rhodiola 250 mg250 mg1 or lessCapsules
Nootropics Depot Rhodiola Rosea 3% Rosavins powder250 mg1 or lessPowders
NOW Foods Rhodiola 500 mg500 mg1 or lessCapsules
Nutricost Rhodiola Rosea 250 mg powder250 mg1 or lessPowders
Nutricost Rhodiola Rosea 500 mg500 mg1 or lessCapsules
Pure Nootropics Rhodiola Rosea 500 mg500 mg1 or lessCapsules
Solgar Rhodiola Root Extract250 mg1 or lessCapsules
Supersmart Rhodiola Rosea (Rhodiolife)600 mg1 or lessCapsules
Pure Encapsulations Rhodiola Rosea (this product)100 mg2 at onceCapsules

Where the reference doses come from

  1. Rhodiola rosea extract (3% rosavins, 1% salidroside), 200 mg: De Bock et al., 2004; Tinsley et al., 2024; Wang et al., 2025.
  2. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 278354, 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.