- 01Rhodiola is a fast, stimulating herb with thin evidence
Unlike ashwagandha, rhodiola was tested as a single dose and acts within hours, which suits a hard day more than a long-term routine; the trials are small and contradictory, so its benefit is a maybe, and its interaction risks with antidepressants are real.
- 02Tiredness is a symptom to explain, not only to treat
No blood test tracks rhodiola, but iron, thyroid and blood count tests can find common causes of tiredness that a supplement would only mask.
Rhodiola rosea is a root extract sold for tiredness, stress and focus, and its trials share an unusual feature: several tested a single dose or a few days, and some found less mental fatigue within hours 610. That makes it the opposite of slow-acting herbs like ashwagandha. The catch is the quality of the evidence. The trials are small, many date from the 2000s and used one Swedish extract, and a systematic review found them contradictory, so the honest grade for its best use is limited 2. It is generally well tolerated for up to 12 weeks, but it is not inert: in the lab it blocks MAO (monoamine oxidase, an enzyme that some antidepressants target), and it may change how some blood pressure medicines are handled 11314.
What is rhodiola?
Rhodiola rosea grows in cold regions and at high altitude, and it has a long history of use in Russia and Scandinavia for work performance, endurance, fatigue, low mood and altitude sickness 1. For the basics, what it is and what it does in your body has its own page, and this guide covers the evidence, how much studies use, when and how to take it, side effects and interactions.
Extracts are usually standardized to two groups of plant compounds, rosavins and salidroside, which are thought to carry much of the activity. LifeFrom's label lists 7.5 mg of rosavins and 2.5 mg of salidrosides in 250 mg of extract, which is 3% and 1%, a 3 to 1 ratio. Most of the classic trials used one standardized extract called SHR-5 3467, and later German trials used another, WS 1375 12. Results from one extract do not automatically transfer to another.
Rhodiola is called an adaptogen, a herb said to help the body cope with stress. The proposed mechanisms are concrete if unproven in people. In Olsson's burnout trial, rhodiola blunted the cortisol awakening response, the normal jump in the stress hormone cortisol after waking 3. In lab tests, root extracts blocked both forms of MAO, the enzyme that breaks down serotonin, dopamine and noradrenaline 13. That second finding is the reason for its interaction warnings.
What rhodiola is good for: the evidence, graded
Each use below carries a grade. Strong means several good randomized trials or a meta-analysis agree; Moderate means several randomized trials, mostly positive but small or short; Limited means few or small trials, or mixed results; Early means lab, animal or a single pilot study; Not supported means good trials found no benefit. Our guide to reading supplement evidence explains the scale. Two independent summaries set the tone:
There isn’t enough reliable evidence to determine whether rhodiola or its components are useful for any health-related purpose. Most of the research in people is of low-to-moderate quality.National Center for Complementary and Integrative Health, Rhodiola fact sheet, April 2025
| Use | What the research found | Evidence | Source |
|---|---|---|---|
| Mental fatigue under stress (night shifts, exams, military duty) | Small trials found better scores on fatigue and concentration tests, some after a single dose; a systematic review found 3 of 5 mental-fatigue trials positive, all with bias or reporting problems | Limited | 2456 |
| Stress-related fatigue and burnout | 576 mg a day for 28 days improved burnout scores and attention more than placebo in 60 adults; an open-label study without placebo reported less fatigue from week 1 | Limited | 312 |
| Endurance exercise | One dose an hour before a 6-mile cycling time trial: about 24 seconds faster, lower perceived effort; a review of 13 small trials found mixed results | Limited | 1011 |
| Physical fatigue in healthy people | Only 2 of 6 trials in the systematic review found a benefit | Limited | 2 |
| Low mood in diagnosed depression | Benefit over placebo in one 6-week trial; no significant difference from placebo in a 12-week trial | Limited | 78 |
| Anxiety | One pilot of 10 people with no placebo group | Early | 9 |
| Anything else (memory, longevity, weight) | NCCIH: not enough reliable evidence for any health purpose | Early | 1 |
Research regarding R. rosea efficacy is contradictory.
What are the benefits of rhodiola rosea for fatigue and focus?
The fatigue trials are the reason rhodiola is popular. In a 2000 crossover trial, 56 young doctors on night duty took one tablet of SHR-5 or placebo daily for two weeks; their scores on a battery of mental-fatigue tests (short-term memory, calculation, concentration) improved in the first two-week period 4. In a 20-day trial in students during exams, the rhodiola group did better on physical fitness, mental fatigue and motor tests, with the authors noting the dose was probably too low 5. In 2003, 161 cadets aged 19 to 21 took a single dose of two or three capsules before mental work under fatigue; both doses produced a highly significant anti-fatigue effect against placebo, and the lower dose did as well as the higher 6.
The most rigorous modern test is Olsson's 2009 trial. Sixty adults diagnosed with stress-related fatigue took 576 mg a day of SHR-5 or placebo for 28 days. Both groups improved, which is the placebo effect at work, but rhodiola beat placebo on the Pines burnout scale and on several attention measures, and it lowered the cortisol awakening response 3. Against that, Ishaque's systematic review found that every trial it included had a high or unclear risk of bias 2. Rhodiola is not a treatment for chronic fatigue syndrome or burnout, which a clinician diagnoses and manages.
How fast does rhodiola work?
Faster than most herbs, if it works for you. The cadet study and the cycling study both measured effects within hours of a single dose 610. In an open-label study of 100 people with long-running fatigue, the largest change came after the first week of 400 mg daily, with further improvement to week 8, but with no placebo group that pattern could be partly expectation 12. The burnout and depression trials measured their results at 4 and 6 weeks 37.
Rhodiola for exercise and endurance
In Noreen's 2013 crossover trial, 18 people took 3 mg per kilogram of body weight of rhodiola or a placebo an hour before a cycling test. Heart rate during the warm-up was 136 against 140 beats per minute, the time trial was 25.4 against 25.8 minutes, and the effort felt easier; blood lactate, a marker of hard effort, did not differ 10. A 2023 systematic review of 13 small trials with 263 people found single doses tended to help endurance and perceived effort, while weeks of use helped short, intense (anaerobic) efforts but not endurance, and most studies carried an unclear or high risk of bias 11. Our heart rate zones calculator and VO2 max calculator are better tools for tracking fitness than any supplement.
Rhodiola and mood
Two trials looked at people diagnosed with mild to moderate depression. In Darbinyan's 2007 trial, 89 adults took 340 mg or 680 mg a day of SHR-5 or placebo for 6 weeks; overall depression scores, insomnia and emotional instability improved on both doses and not on placebo 7. Mao's 2015 trial randomized 57 adults to rhodiola, the antidepressant sertraline or placebo for 12 weeks: none of the three separated significantly from the others, sertraline produced the largest drop in depression scores, and side effects were reported by 63.2% on sertraline, 30.0% on rhodiola and 16.7% on placebo 8.
Rhodiola is not a treatment for depression, which is diagnosed and treated by a clinician, and it is never a swap for a prescribed antidepressant. Combining the two without advice is the riskiest way to use it, for the reasons in the interactions section below. If low mood has lasted more than two weeks, or you have any thoughts of self-harm, contact a clinician; in the US you can call or text 988 at any hour.
Rhodiola rosea benefits for women and for men
The trials enrolled both sexes and did not find different effects in women and men; the cycling, burnout and depression trials all included women 3810. Claims online about rhodiola for fertility, menstrual symptoms or testosterone rest on traditional use and lab work rather than human trials. The safety point that differs is pregnancy and breastfeeding, where NCCIH says little is known 1.
How much rhodiola do studies use?
These are the amounts trials gave, as a record of the research, not a dose for you. Most figures are for standardized extracts, so the extract's name matters.
| Use studied | Amount in the trial | Form | How long | Source |
|---|---|---|---|---|
| Burnout and stress-related fatigue | 576 mg daily (4 tablets) | SHR-5 extract | 28 days | 3 |
| Mental fatigue in cadets | 2 or 3 capsules, once | SHR-5 extract | Single dose | 6 |
| Night-shift doctors | 1 tablet daily (low dose) | SHR-5 extract | 2 weeks | 4 |
| Mild to moderate depression | 340 or 680 mg daily | SHR-5 extract | 6 weeks | 7 |
| Long-running fatigue (open label) | 200 mg twice daily | WS 1375 extract | 8 weeks | 12 |
| Anxiety pilot | 340 mg daily | Rhodax extract | 10 weeks | 9 |
| Cycling time trial | 3 mg per kg of body weight, once | Rhodiola rosea extract | 1 hour before exercise | 10 |
There is no official upper limit for rhodiola. NCCIH describes it as possibly safe for up to 12 weeks, and no trial in the table reported serious side effects 137. LiverTox, the federal database of drug and supplement liver injury, has no rhodiola entry, meaning it has not been linked to a pattern of liver injury.
How LifeFrom's capsule compares: one capsule holds 250 mg of Rhodiola rosea root extract with 7.5 mg of rosavins and 2.5 mg of salidrosides, which is 3% and 1% of the extract. That is below the 340 to 680 mg a day used in the burnout and mood trials, and closer to the low-dose regimens in the night-shift and exam studies, which the exam-study authors themselves thought was on the low side 357.
When and how to take rhodiola
Taking rhodiola: what the trials and the label say
Earlier is better for most people, because insomnia is one of rhodiola's reported side effects 1. The exercise study gave it an hour before activity 10. Whether to take it with food is not settled by the trials; the LifeFrom label suggests meals. On rhodiola's half-life, we found no reliable human figure, so treat numbers you see online with caution. Cycling, meaning planned breaks, has not been tested; trials stopped after 2 to 12 weeks.
What are the side effects of rhodiola?
| Side effect | How common or serious | What to do |
|---|---|---|
| Dizziness | Listed by NCCIH; the most common event in the anxiety pilot | Avoid driving until you know how it affects you 19 |
| Dry mouth, or the opposite, extra saliva | Listed by NCCIH | Usually mild 1 |
| Headache | Listed by NCCIH | Usually mild 1 |
| Trouble sleeping, feeling wired | Listed by NCCIH; more likely later in the day or with caffeine | Earlier dosing, or stop 1 |
| Restlessness, trembling, racing heart with an antidepressant | Case report with paroxetine, read as possible serotonin syndrome | Stop and get same-day care 15 |
In the trials, side effects were mild and uncommon: the burnout and depression trials reported none that were serious 37, and in Mao's 12-week trial 30.0% reported any side effect on rhodiola against 16.7% on placebo 8.
Who should avoid rhodiola or ask first?
- Pregnancy and breastfeeding: NCCIH says little is known about safety, so there is no basis for reassurance 1.
- Children: trials enrolled adults, the youngest being students and 19 to 21-year-old cadets, so there is no safety data in children 56.
- Anyone on an antidepressant or another psychiatric medicine: rhodiola blocks MAO in the lab, and a case of probable serotonin excess with paroxetine has been reported 1315.
- Bipolar disorder: rhodiola is promoted as energizing and mood-lifting, so anyone with bipolar disorder should raise it with their psychiatrist first.
- Blood pressure treatment, especially losartan: NCCIH notes reported interactions 114.
- Insomnia: it can keep some people awake 1.
- Long-lasting exhaustion: see a clinician first, because the causes are often treatable and testable.
Rhodiola interactions
Very few rhodiola interactions have been tested in people. The ones below are based on its lab effects, an animal study and case reports, which is why the advice is to ask rather than to assume it is fine or dangerous.
| Medicine | What can happen | Why | What to do |
|---|---|---|---|
| Antidepressants (SSRIs such as paroxetine and sertraline, SNRIs, MAO inhibitors) | Possible serotonin excess: restlessness, tremor, racing heart | Rhodiola extracts blocked MAO A and B in lab tests; one case report with paroxetine 1315 | Avoid together unless the prescriber agrees |
| Losartan and other blood pressure medicines | Medicine levels could rise, with lower blood pressure | In rabbits, rhodiola nearly doubled losartan exposure; NCCIH notes the interaction 141 | Ask the prescriber or pharmacist before starting |
| Medicines broken down by liver CYP enzymes or moved by P-glycoprotein (for example warfarin, some seizure medicines) | Levels could change | The losartan study authors flagged CYP and P-gp substrates as a possible class concern 14 | Ask a pharmacist, especially for narrow-margin medicines |
| Stimulants (ADHD medicines, caffeine pills) | More jitteriness and poor sleep | Rhodiola can cause insomnia on its own 1 | Ask the prescriber; keep caffeine earlier in the day |
| Antipsychotics and mood stabilizers | Unknown effects on a finely balanced treatment | Rhodiola acts on brain chemical systems 13 | Ask the psychiatrist first |
Supplements to pair or keep apart
| Supplement | Together or apart | Why |
|---|---|---|
| Ashwagandha | Together is possible, untested | Both are called adaptogens, but ashwagandha leans calming and can cause drowsiness. They share LifeFrom's Mood pack; no trial has tested the pair |
| L-theanine | Together is common | Theanine is calming without sedation; it shares the Focus and Mood packs. No known interaction |
| Tyrosine | Together is possible | Both are used for focus under stress and share the Focus pack; no trial of the pair |
| Lion's mane | Together is possible | Shares the Focus pack; no known interaction |
| Caffeine, green tea extract and other stimulants | Better apart in time, or less of one | Stacked stimulation makes insomnia and jitteriness more likely 1 |
| St John's wort, 5-HTP, SAMe | Keep apart | Each acts on serotonin; stacking them with rhodiola's MAO effect raises the chance of serotonin excess 13 |
| Cordyceps | Together is possible | Both are sold for energy; no trial of the pair |
Blood tests worth knowing about
No blood test tracks rhodiola, and none tells you whether it is working; a fatigue or mood diary does that better. The markers below matter for different reasons: two were measured in rhodiola studies, and the rest are the checks a clinician may consider when tiredness is the reason you are looking. Ask your clinician whether any of them make sense for you.
| Marker | Why it matters with rhodiola | When it is usually checked |
|---|---|---|
| Morning cortisol | Rhodiola blunted the saliva cortisol rise after waking in the burnout trial; a single blood cortisol is a different test 3 | Only when a clinician suspects an adrenal problem |
| Heart rate | Ran about 4 beats per minute lower during a warm-up after one dose 10 | Any wearable or clinic visit |
| Lactate | Measured in the cycling study and did not change 10 | Sports testing or acute illness, not routine |
| Ferritin and hemoglobin | Low iron and anemia are common, treatable causes of tiredness | When fatigue, heavy periods or a restricted diet raise the question |
| TSH | An underactive thyroid is a common cause of tiredness and low mood | When fatigue, weight change or feeling cold raise the question |
A low ferritin, a low hemoglobin or an abnormal TSH is a result to bring to your clinician, not something to manage with an energy supplement. Our iron deficiency, anemia and hypothyroidism guides explain what those findings mean, and understanding your CBC covers the blood count.
Conditions and goals it comes up around
Most people come to rhodiola because they are tired or stretched thin. Tiredness has dozens of causes, from short sleep to iron deficiency and hypothyroidism, and a clinician diagnoses and treats those; rhodiola is not a treatment for any of them. For sleep timing, our sleep calculator is a practical starting point. For training, the effects in trials were small enough that sleep, food and the plan itself matter far more. Rhodiola is never a swap for a prescribed medicine.
Rhodiola in the LifeFrom pouch
| In the LifeFrom pouch | |
|---|---|
| Product | Rhodiola |
| What one serving holds | 1 capsule: Rhodiola Root (Rhodiola rosea) Extract 250 mg (Rosavins, 7.5 mg; Salidrosides, 2.5 mg) |
| Form | Capsule (vegan, vegetable cellulose, with silica); the label suggests taking it with meals |
| How it is packed | One serving in each of your 30 daily pouches, with up to 8 supplements per pouch |
| Price | $15.00 a month, plus the fixed $28.50 a month packing, handling and US delivery line for the whole pouch, not per supplement. Prices as of November 2026; the shop shows the current price |
| Curated packs that include it | Focus, Mood |
One capsule holds 250 mg of extract, lower than the 340 to 680 mg a day in the burnout and mood trials. Everything in a pouch is taken at the same time: in the Mood pack rhodiola goes with ashwagandha, which can cause drowsiness, and with theanine; in the Focus pack it goes with tyrosine and theanine. None of these is a known interaction, but none of the combinations has been tested in a trial. LifeFrom pouches are packed for the morning, which suits rhodiola's tendency to disturb sleep.
For the full product list and pack contents, see the shop and its packs.
This guide is general education, not medical advice, and it cannot account for your health or medicines. Supplements, rhodiola included, are not approved by the FDA for safety or effectiveness. The clinician who knows your history and prescriptions is the right person to decide whether rhodiola fits; see our medical disclaimer.
Citations
- National Center for Complementary and Integrative Health (NCCIH). Rhodiola. Updated April 2025.
- Ishaque S, Shamseer L, Bukutu C, Vohra S. Rhodiola rosea for physical and mental fatigue: a systematic review. BMC Complement Altern Med. 2012;12:70.
- Olsson EM, von Schéele B, Panossian AG. A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract SHR-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue. Planta Med. 2009;75(2):105-112.
- Darbinyan V, Kteyan A, Panossian A, et al. Rhodiola rosea in stress induced fatigue: a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine. 2000;7(5):365-371.
- Spasov AA, Wikman GK, Mandrikov VB, Mironova IA, Neumoin VV. A double-blind, placebo-controlled pilot study of the stimulating and adaptogenic effect of Rhodiola rosea SHR-5 extract on the fatigue of students caused by stress during an examination period with a repeated low-dose regimen. Phytomedicine. 2000;7(2):85-89.
- Shevtsov VA, Zholus BI, Shervarly VI, et al. A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work. Phytomedicine. 2003;10(2-3):95-105.
- Darbinyan V, Aslanyan G, Amroyan E, et al. Clinical trial of Rhodiola rosea L. extract SHR-5 in the treatment of mild to moderate depression. Nord J Psychiatry. 2007;61(5):343-348.
- Mao JJ, Xie SX, Zee J, et al. Rhodiola rosea versus sertraline for major depressive disorder: a randomized placebo-controlled trial. Phytomedicine. 2015;22(3):394-399.
- Bystritsky A, Kerwin L, Feusner JD. A pilot study of Rhodiola rosea (Rhodax) for generalized anxiety disorder (GAD). J Altern Complement Med. 2008;14(2):175-180.
- Noreen EE, Buckley JG, Lewis SL, Brandauer J, Stuempfle KJ. The effects of an acute dose of Rhodiola rosea on endurance exercise performance. J Strength Cond Res. 2013;27(3):839-847.
- Sanz-Barrio PM, Noreen EE, Gilsanz-Estebaranz L, et al. Rhodiola rosea supplementation on sports performance: a systematic review of randomized controlled trials. Phytother Res. 2023;37(10):4414-4428.
- Lekomtseva Y, Zhukova I, Wacker A. Rhodiola rosea in subjects with prolonged or chronic fatigue symptoms: results of an open-label clinical trial. Complement Med Res. 2017;24(1):46-52.
- van Diermen D, Marston A, Bravo J, et al. Monoamine oxidase inhibition by Rhodiola rosea L. roots. J Ethnopharmacol. 2009;122(2):397-401.
- Spanakis M, Vizirianakis IS, Batzias G, Niopas I. Pharmacokinetic interaction between losartan and Rhodiola rosea in rabbits. Pharmacology. 2013;91(1-2):112-116.
- Maniscalco I, Toffol E, Giupponi G, Conca A. The interaction of Rhodiola rosea and antidepressants: a case report [in German]. Neuropsychiatr. 2015;29(1):36-38.
Educational context only, not medical advice or a diagnosis. Always discuss your results with a clinician.
