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Eleuthero (Siberian Ginseng)

Classic adaptogenic herb supporting endurance, immune function, and stress resilience with extensive Russian research validation

Scientific nameEleutherococcus senticosus FormulaVarious eleutherosides Molecular weightVariable natural compounds g/mol CASVarious natural compounds
75 absorption score
8 safety / 10
25 USD per month
5 documented interactions

Check it against something

Evidence level C

Eleuthero (Siberian Ginseng) with:

Compatibility score 75 out of 100
75 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

Physical endurance and stamina

Enhances physical endurance and reduces exercise-induced fatigue

Improves oxygen utilization and cellular energy production Evidence B-grade 2-6 weeks

Stress adaptation and resilience

Adaptogenic support for managing physical and mental stress

Modulates stress hormone response and supports adrenal function Evidence B-grade 3-8 weeks

Immune system support

Enhances immune function and resistance to infections

Immune-modulating compounds strengthen immune response Evidence B-grade 4-12 weeks

Mental alertness and focus

Improves mental alertness and cognitive function

Enhances neurotransmitter function and brain energy metabolism Evidence C-grade 2-6 weeks

Recovery and anti-fatigue

Accelerates recovery and reduces both physical and mental fatigue

Supports cellular repair and energy restoration processes Evidence B-grade 1-4 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% Melatonin Sleep support & circadian rhythm 0.5-3mg A 50% Ashwagandha Stress management & energy 300-600mg A 75% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% L-Theanine Calm focus & stress relief 100-400mg B 90%

Every pair we checked

12 combinations scored by the engine
Eleuthero (Siberian Ginseng) + Caffeine No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Creatine Monohydrate No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Vitamin D3 No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Calcium Carbonate No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Whey Protein No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Lactase No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Bovine Collagen No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + DHA No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Turmeric No documented interaction either way No known interaction 70
Eleuthero (Siberian Ginseng) + Rhodiola Rosea Enhanced adaptogenic and endurance support Works better together 75
Eleuthero (Siberian Ginseng) + Panax Ginseng Synergistic energy and cognitive enhancement Works better together 75
Eleuthero (Siberian Ginseng) + Cordyceps Enhanced athletic performance and endurance Works better together 75

Dosage

With breakfast
Daily300-800mg
Endurance performance300-800mg daily
Stress adaptation300-600mg daily
Immune support300-600mg daily
Cognitive support200-400mg daily

Before you take it

VeganYes

When to expect it

First Effects1-4 weeks for energy and endurance improvements
Peak Benefits6-12 weeks for sustained adaptogenic and immune support
Deficiency DevelopmentNot applicable - herbal supplement
Toxicity OnsetRare, mainly with high doses or sensitive individuals

How to measure it

$80-150
MarkerBlood pressure, immune markers if monitoring effects
OptimalNormal blood pressure, enhanced immune function markers
Deficient belowNot applicable for herbal supplement
FrequencyEvery 6-12 months if monitoring cardiovascular or immune effects

What people actually reported to the FDA

CAERS, 4 reports naming it as the suspect

Most reported effects

Blood pressure increased 1
Hyperhidrosis 1
Activities of daily living impaired 1
Adrenal disorder 1
Gastrointestinal disorder 1
Named as the suspect 4 reports of 4 that mention it at all
Serious outcome 88% 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 High 75 of 100 · absorbs well relative to other forms
Delivered daily 412.5 mg
Cost per 100 mg delivered $0.20 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented
+
Rhodiola Rosea

Enhanced adaptogenic and endurance support

Both provide complementary adaptogenic and performance benefits · level C
+
Ginseng Panax

Synergistic energy and cognitive enhancement

Complementary but distinct ginseng-like effects · level C
+
Cordyceps

Enhanced athletic performance and endurance

Both improve oxygen utilization and exercise performance · level C

What not to take with Eleuthero (Siberian Ginseng)

2 documented
!
Sedative Medications

May counteract sedative effects due to energizing properties

Stimulating effects may oppose sedation · moderate significance
!
Blood Pressure Lowering Herbs

May interfere with blood pressure lowering effects

May raise blood pressure in sensitive individuals · moderate significance

Medication interactions

Discuss these with a pharmacist before combining
blood-pressure-medications Moderate

May affect blood pressure and interfere with medications

What to do: Monitor blood pressure closely

diabetes-medications Minor

May affect blood sugar levels

What to do: Monitor blood glucose levels

immunosuppressive-medications Minor

May interfere with immunosuppressive therapy

What to do: Monitor immune function

Available forms

bioavailability compared
Eleuthero Root Extract (Standardized Eleutherosides) 75

Eleuthero Root Extract (Standardized Eleutherosides): Proven endurance booster, Immune support, Extensive research, Good safety

Food sources

before you supplement
Eleuthero root tea Moderate eleuthereside content · 60
Dried eleuthero root Natural compound profile · 55
Standardized extracts Concentrated eleutherosides · 75
Not found in common foods Specific Siberian plant preparation required · N/A

Too little

deficiency signs
  • Not applicable (herbal supplement, not essential nutrient):
  • General symptoms addressed by eleuthero:
  • Poor physical endurance and exercise tolerance
  • Chronic stress and poor stress adaptation
  • Frequent infections and poor immune function
  • Mental fatigue and poor cognitive performance
  • Slow recovery and chronic fatigue

Too much

toxicity signs
  • Generally safe with some considerations:
  • Blood pressure elevation in sensitive individuals
  • Insomnia and restlessness with evening use
  • Mild hormonal effects
  • Rare allergic reactions

Who benefits most

athletes-endurance-performance

Proven endurance enhancement and exercise performance support

300-800mg daily
chronic-stress-fatigue

Excellent adaptogenic support for chronic stress and fatigue

300-600mg daily
immune-support-frequent-illness

Immune system enhancement for those with frequent infections

300-600mg daily
mental-alertness-focus

Cognitive support for improved mental alertness and focus

200-400mg daily
recovery-anti-aging

Enhanced recovery and anti-aging support for active individuals

300-600mg daily

Where to buy it

compare forms first

Look for Eleuthero (Siberian Ginseng) at 300-800mg per serving. The form that matters here is Eleuthero Root Extract (Standardized Eleutherosides).

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How it works

  • Improves oxygen utilization and cellular energy production for enhanced endurance
  • Modulates stress hormone response and supports adrenal function
  • Immune-modulating eleutherosides strengthen immune system response
  • Enhances neurotransmitter function and brain energy metabolism
  • Supports cellular repair and energy restoration processes
  • Adaptogenic effects optimize multiple physiological systems

Key findings

what the evidence supports
  • Extensive Russian research on endurance and performance enhancement
  • Good evidence for immune system support and stress adaptation
  • Proven safety profile with decades of research
  • Effective adaptogen for athletes and stressed individuals

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 Eleuthero (Siberian Ginseng)?

Documented effects: Physical endurance and stamina; Stress adaptation and resilience; Immune system support; Mental alertness and focus. Enhances physical endurance and reduces exercise-induced fatigue

How much Eleuthero (Siberian Ginseng) should you take per day?

The common daily range is 300-800mg. By goal — endurance performance: 300-800mg daily; stress adaptation: 300-600mg daily; immune support: 300-600mg daily; cognitive support: 200-400mg daily.

When is the best time to take Eleuthero (Siberian Ginseng)?

With breakfast. First effects are typically reported within 1-4 weeks for energy and endurance improvements.

What are the side effects of Eleuthero (Siberian Ginseng)?

At excessive doses: Generally safe with some considerations:, Blood pressure elevation in sensitive individuals, Insomnia and restlessness with evening use, Mild hormonal effects, Rare allergic reactions. Safety rating at normal doses is 8 out of 10.

What should you not take with Eleuthero (Siberian Ginseng)?

Separate it from Sedative Medications, Blood Pressure Lowering Herbs by two to four hours. May counteract sedative effects due to energizing properties

Does Eleuthero (Siberian Ginseng) interact with medications?

Documented interactions with blood-pressure-medications, diabetes-medications, immunosuppressive-medications. Discuss these with a pharmacist before combining.

How do you know if you need Eleuthero (Siberian Ginseng)?

The marker is Blood pressure, immune markers if monitoring effects, optimal range Normal blood pressure, enhanced immune function markers. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by eleuthero:, Poor physical endurance and exercise tolerance, Chronic stress and poor stress adaptation.

Taken for

28 Sleep & Stress

Melatonin · Magnesium Glycinate · Ashwagandha

 43 Performance

Caffeine · Creatine Monohydrate · Whey Protein