Rhodiola Rosea

Arctic adaptogenic herb that enhances mental performance, reduces fatigue, and supports stress resilience

Scientific nameRhodiola rosea FormulaVarious rosavins and salidroside Molecular weightVariable active compounds g/mol CASVarious phytochemicals

80 absorption score

8 safety / 10

25 USD per month

5 documented interactions

Check it against something

Evidence level B

Rhodiola Rosea with:

86 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Enhanced mental performance and focus

Improves cognitive function, attention, and mental clarity

Modulates neurotransmitters and improves brain energy metabolism Evidence A-grade 1-4 weeks

Reduced mental and physical fatigue

Significantly decreases fatigue and improves energy levels

Enhances cellular energy production and stress adaptation Evidence A-grade 1-2 weeks

Improved stress resilience

Enhances ability to cope with stress and maintain performance

Modulates stress response and HPA axis function Evidence A-grade 2-6 weeks

Enhanced physical endurance

Improves exercise performance and reduces exercise fatigue

Improves oxygen utilization and energy metabolism Evidence B-grade 2-4 weeks

Mood support and depression relief

May help improve mood and reduce mild depression

Modulates serotonin, dopamine, and norepinephrine Evidence B-grade 4-8 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Creatine Monohydrate Strength & power enhancement 3-5g A 95% Calcium Bone health & muscle function 1,000-1,200 mg A 30% Ashwagandha Stress management & energy 300-600mg A 75% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% Vitamin B12 (Cyanocobalamin) Energy & nerve support 250-1000 mcg A 70% Coenzyme Q10 (CoQ10) Heart health & cellular energy 100-200mg A 10%

Every pair we checked

12 combinations scored by the engine

Rhodiola Rosea + Caffeine May increase overstimulation risk Needs attention 58

Rhodiola Rosea + Creatine Monohydrate No documented interaction either way No known interaction 70

Rhodiola Rosea + Calcium Carbonate No documented interaction either way No known interaction 70

Rhodiola Rosea + Whey Protein No documented interaction either way No known interaction 70

Rhodiola Rosea + Lactase No documented interaction either way No known interaction 70

Rhodiola Rosea + Bovine Collagen No documented interaction either way No known interaction 70

Rhodiola Rosea + DHA No documented interaction either way No known interaction 70

Rhodiola Rosea + Turmeric No documented interaction either way No known interaction 70

Rhodiola Rosea + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70

Rhodiola Rosea + Ginkgo Biloba Enhanced cognitive performance and mental clarity Works better together 75

Rhodiola Rosea + Vitamin D3 Enhanced energy metabolism and cognitive function Works better together 78

Rhodiola Rosea + Ashwagandha Enhanced adaptogenic effects and stress management Works better together 86

Dosage

Morning empty stomach

Daily200-400mg

Cognitive enhancement200-400mg daily

Fatigue relief200-600mg daily

Stress management300-600mg daily

Athletic performance200-400mg pre-exercise

Before you take it

VeganYes

When to expect it

First EffectsDays to 1 week for energy and focus benefits

Peak Benefits2-6 weeks for sustained cognitive and stress benefits

Deficiency DevelopmentNot applicable - herbal supplement

Toxicity OnsetRare, mainly overstimulation with high doses

How to measure it

$100-200

MarkerCortisol levels, neurotransmitter metabolites (research purposes)

OptimalBalanced stress hormones and improved energy markers

Deficient belowNot applicable for herbal supplement

FrequencyOptional monitoring for stress management programs

What people actually reported to the FDA

CAERS, 6 reports naming it as the suspect

Most reported effects

Anxiety 2

Heart rate increased 1

Heart rate irregular 1

Irregular sleep phase 1

Vascular headache 1

Named as the suspect 6 reports of 9 that mention it at all

Serious outcome 90% hospitalisation, emergency room or worse

Other Serious or Important Medical Event3

Visited Emergency Room2

Hospitalization2

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption Very high 80 of 100 · best absorbed form of this compound

Delivered daily 240 mg

Cost per 100 mg delivered $0.35 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Ashwagandha

Enhanced adaptogenic effects and stress management

Complementary stress-response pathways · level B

B Complex Vitamins

Enhanced energy metabolism and cognitive function

B vitamins support energy pathways enhanced by rhodiola · level B

Ginkgo Biloba

Enhanced cognitive performance and mental clarity

Complementary effects on brain circulation and function · level C

What not to take with Rhodiola Rosea

2 documented

Sedatives Alcohol

May counteract energizing effects of rhodiola

Opposing effects on nervous system activity · moderate significance

Excessive Caffeine

May increase overstimulation risk

Additive stimulating effects · mild significance

Medication interactions

Discuss these with a pharmacist before combining

antidepressants-ssri Minor

May enhance serotonergic effects

What to do: Monitor for enhanced drug effects

stimulant-medications Minor

May enhance stimulant effects

What to do: Monitor for overstimulation

blood-pressure-medications Minor

May affect blood pressure regulation

What to do: Monitor blood pressure

Available forms

bioavailability compared

Standardized Root Extract (3% rosavins, 1% salidroside) 80

Standardized Root Extract (3% rosavins, 1% salidroside): Mental performance, Fatigue relief, Fast-acting, Well-researched

Food sources

before you supplement

Rhodiola root (raw) Variable active compound content · 60

Standardized extracts only Concentrated active compounds · 80

Traditional teas Lower concentration · 50

Not found in common foods Supplementation required · N/A

Too little

deficiency signs

Not applicable (herbal supplement, not essential nutrient):
General symptoms addressed by rhodiola:
Mental fatigue and brain fog
Poor stress tolerance
Low energy and motivation
Difficulty concentrating
Reduced physical endurance

Too much

toxicity signs

Generally safe but potential side effects:
Jitteriness and restlessness
Sleep disturbances if taken late
Dizziness in some individuals
Dry mouth with high doses

Who benefits most

mental-fatigue-burnout

Excellent for reducing mental fatigue and improving cognitive performance

200-400mg daily (standardized extract)

cognitive-enhancement-students

Improves focus, memory, and mental clarity for studying

200-400mg daily

stress-management-professionals

Enhances stress resilience and maintains performance under pressure

200-600mg daily

athletes-endurance

Improves physical endurance and reduces exercise fatigue

200-400mg before training

mild-depression-mood

May help improve mood and reduce mild depressive symptoms

300-600mg daily

Where to buy it

compare forms first

Look for Rhodiola Rosea at 200-400mg per serving. The form that matters here is Standardized Root Extract (3% rosavins, 1% salidroside).

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What else affects it

Beyond other supplements

Excessive caffeine

May increase overstimulation risk

Additive stimulating effects

How it works

Modulates neurotransmitters including serotonin, dopamine, and norepinephrine
Enhances ATP synthesis and cellular energy production
Reduces stress-induced damage through antioxidant effects
Modulates HPA axis and stress hormone response
Improves oxygen utilization and mitochondrial function
Neuroprotective effects through multiple pathways

Key findings

what the evidence supports

Highly effective for reducing mental fatigue and improving cognitive performance
Significant benefits for stress resilience and adaptation
Improves physical endurance and exercise performance
Generally safe but avoid evening use to prevent sleep disruption

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Rhodiola Rosea?

Documented effects: Enhanced mental performance and focus; Reduced mental and physical fatigue; Improved stress resilience; Enhanced physical endurance. Improves cognitive function, attention, and mental clarity

How much Rhodiola Rosea should you take per day?

The common daily range is 200-400mg. By goal — cognitive enhancement: 200-400mg daily; fatigue relief: 200-600mg daily; stress management: 300-600mg daily; athletic performance: 200-400mg pre-exercise.

When is the best time to take Rhodiola Rosea?

Morning empty stomach. First effects are typically reported within Days to 1 week for energy and focus benefits.

What are the side effects of Rhodiola Rosea?

At excessive doses: Generally safe but potential side effects:, Jitteriness and restlessness, Sleep disturbances if taken late, Dizziness in some individuals, Dry mouth with high doses. Safety rating at normal doses is 8 out of 10.

What should you not take with Rhodiola Rosea?

Separate it from Sedatives Alcohol, Excessive Caffeine by two to four hours. May counteract energizing effects of rhodiola

Does Rhodiola Rosea interact with medications?

Documented interactions with antidepressants-ssri, stimulant-medications, blood-pressure-medications. Discuss these with a pharmacist before combining.

How do you know if you need Rhodiola Rosea?

The marker is Cortisol levels, neurotransmitter metabolites (research purposes), optimal range Balanced stress hormones and improved energy markers. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by rhodiola:, Mental fatigue and brain fog, Poor stress tolerance.

Taken for

52 Brain & Focus

Caffeine · DHA · Fish Oil (EPA/DHA)

62 Energy & Metabolism

Vitamin B12 (Methylcobalamin) · Ashwagandha · Vitamin B12 (Cyanocobalamin)

43 Performance

Caffeine · Creatine Monohydrate · Whey Protein