ByDr. Brennan Commerford, D.C.·Last reviewed: April 2026
All Ingredients
Botanical1 form

Rhodiola

Preferred Form
standardized-extract
Form Score
95/100Top Tier
Evidence Level
High Evidence

Which Rhodiola form is best?

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Quick Answer

What is Rhodiola used for?

Rhodiola is commonly used to support adaptogen. Our summary here is backed by 3 cited studies.

3cited studies

All Forms of Rhodiola

FormTierForm ScoreDose RangeUnit
standardized-extractPreferred
95/100Top Tier

Absorption by Form

Top Tier
standardized-extract
95/100

What is Rhodiola?

Rhodiola is a Botanical supplement available in 1 form.

Not all forms of Rhodiola are equal. The form you choose determines how much Rhodiola actually reaches your tissues, and the difference between the best and worst forms can be substantial. Standardized Rhodiola rosea extract is the preferred adaptogenic form, concentrated for rosavins and salidroside—the active compounds with documented effects on HPA axis regulation and stress adaptation. Research supports standardized-ratio rhodiola extracts (3:1 rosavin:salidroside) for promoting healthy cognitive performance, fatigue resistance, and cortisol balance.

Forms of Rhodiola Compared

Rhodiola (Rhodiola rosea) Root Extract (4% Rosavins, 1% Salidroside) Preferred (Preferred Form) has a bioavailability rating of good absorption.

What the Research Shows

Rhodiola rosea standardized extract provides rosavins and salidroside — adaptogens that modulate cortisol, enhance ATP regeneration, and support neurotransmitter balance. Clinical trials demonstrate benefits for physical endurance, cognitive performance under stress, and fatigue reduction. It is one of the most evidence-backed adaptogens with a strong safety profile.

Phase III double-blind RCT (n=60); standardized SHR-5 Rhodiola rosea extract reduced burnout and cortisol awakening response in stress-related fatigue. PMID: 19016404
Double-blind crossover RCT (n=56 physicians); standardized SHR-5 extract improved a mental-fatigue index during night duty vs placebo. PMID: 11081987
Parallel-group RCT (n=161 cadets); standardized SHR-5 extract significantly raised an anti-fatigue index vs placebo. PMID: 12725561

How to Choose the Right Form

Rhodiola (Rhodiola rosea) Root Extract (4% Rosavins, 1% Salidroside) is classified as Preferred Form by FormulaForge — our top recommendation for Rhodiola. It carries a bioavailability rating of good absorption, meaning more of the active compound reaches your tissues per dose unit compared to lower-rated forms.

When choosing a Rhodiola supplement, read the label for the specific form name — that is what determines how much you actually absorb. Preferred Forms have the strongest research-backed evidence for efficient absorption.

Other forms may be appropriate depending on individual goals, cost considerations, and your healthcare provider’s guidance. The best form for you depends on your specific health needs.

Dosing & Safety

Individual dose requirements vary based on health goals, body weight, and existing nutrient intake. Your healthcare provider can help you determine an appropriate amount of Rhodiola for you.

Side Effects: Consult your healthcare provider regarding tolerability, particularly at higher doses.

These statements are based on structure/function research and have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting or changing a supplement regimen.

The Science

The following studies and findings inform FormulaForge classifications for Rhodiola:

Phase III double-blind RCT (n=60); standardized SHR-5 Rhodiola rosea extract reduced burnout and cortisol awakening response in stress-related fatigue. PMID: 19016404
Double-blind crossover RCT (n=56 physicians); standardized SHR-5 extract improved a mental-fatigue index during night duty vs placebo. PMID: 11081987
Parallel-group RCT (n=161 cadets); standardized SHR-5 extract significantly raised an anti-fatigue index vs placebo. PMID: 12725561

Dosing Guidance

Individual dose requirements for Rhodiola vary based on health goals, body weight, and existing dietary intake. A qualified healthcare provider can help you determine an appropriate amount for you.

Frequently Asked Questions

What is Rhodiola and what does it do?
Rhodiola is a supplement commonly used to support Botanical — available in forms with exceptional bioavailability. As with all supplements, talk to a qualified healthcare provider about whether it fits your specific goals.
How much Rhodiola should I take?
Dosing for Rhodiola varies based on the specific form, your health goals, and individual factors. Consult a qualified healthcare provider for personalized guidance.
What does Rhodiola support?
Rhodiola is commonly used to support Botanical. Research suggests it plays a role in several physiological pathways. As with all supplements, these statements have not been evaluated by the Food and Drug Administration and Rhodiola is not intended to diagnose, treat, cure, or prevent any disease.
Is Rhodiola safe?
Rhodiola is generally well-tolerated when taken at research-supported doses. As with any supplement, individual responses vary. Consult a qualified healthcare provider before use, especially if you are pregnant, nursing, have a medical condition, or take medications. These statements have not been evaluated by the Food and Drug Administration.

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References

  1. Phase III double-blind RCT (n=60); standardized SHR-5 Rhodiola rosea extract reduced burnout and cortisol awakening response in stress-related fatigue. PubMed DOI
  2. Double-blind crossover RCT (n=56 physicians); standardized SHR-5 extract improved a mental-fatigue index during night duty vs placebo. PubMed DOI
  3. Parallel-group RCT (n=161 cadets); standardized SHR-5 extract significantly raised an anti-fatigue index vs placebo. PubMed DOI

FormulaForge formulates and sells supplements containing the ingredients discussed on this page. Our formulary recommendations are based on peer-reviewed bioavailability research. All cited studies are independently verifiable.