Rhodiola Rosea Guide: Rosavins, Salidrosides & the 3%/1% Standard
Rhodiola rosea — direct answers
Rhodiola rosea, also called arctic root or golden root, is a succulent flowering plant of the Crassulaceae family growing in cold, high-altitude regions of Europe and Asia, with traditional use in Scandinavia and Russia. Quality root extracts are standardised to 3% rosavins and 1% salidrosides. Rosavins (rosavin, rosin, rosarin) occur only in Rhodiola rosea, so a verified rosavin content is a species fingerprint distinguishing genuine material from substitutes such as Rhodiola crenulata. Notable randomised placebo-controlled trials include Darbinyan et al. 2000 (Phytomedicine) and Olsson et al. 2009 (Planta Medica). No EU/UK health claims are authorised for rhodiola. Vitality Supplements uses 200mg of Rhodiola rosea extract standardised to 3% rosavins and 1% salidrosides in Cortisol Balance, described factually.
Rhodiola rosea — the standardisation that proves it’s real.
The arctic root, the rosavin fingerprint that separates genuine rhodiola from substitutes, and the human trials — referenced to primary sources, described factually.
Rhodiola rosea is a succulent that grows in cold, mountainous regions of Europe and Asia, with a long history of traditional use in Scandinavia and Russia. Quality extracts are standardised to rosavins and salidrosides — and because rosavins occur only in Rhodiola rosea, a stated 3% rosavin / 1% salidroside specification is a checkable fingerprint of the genuine species. Randomised human trials exist and are linked below. No EU/UK health claims are authorised for rhodiola, so it should be described factually.
- Rhodiola rosea (arctic root, golden root) grows in cold mountain regions and has centuries of traditional use in Scandinavia and Russia
- Rosavins are found only in Rhodiola rosea — a stated rosavin percentage is proof of species, not marketing garnish
- The classic specification is 3% rosavins and 1% salidrosides, mirroring the roughly 3:1 natural ratio in the root
- Randomised, placebo-controlled human trials exist — Darbinyan 2000 and Olsson 2009 are linked below
- No EU/UK health claims are authorised for rhodiola; unstandardised “rhodiola extract” on a label proves nothing about the species
A root from the cold places.
Rhodiola rosea is a low, fleshy-leaved succulent in the stonecrop family (Crassulaceae). It grows where little else does — arctic coastlines, alpine scree, the mountains of Scandinavia, Siberia and Central Asia — and it is the thick golden rhizome, smelling faintly of rose when cut, that gives the plant its species name and its common names: golden root, arctic root, rose root.
Traditional use runs deep in exactly the regions where the plant grows. It appears in Scandinavian and Russian folk practice going back centuries, and it was studied extensively by Soviet-era researchers, which is why a disproportionate share of the older literature is Russian.
That species question is not academic. Cheaper material from related species such as Rhodiola crenulata is chemically different and has been documented as an adulterant in commercial rhodiola products. The next section covers the specification that closes the loophole.
Why 3% rosavins is proof, not garnish.
Two families of marker compounds are used to characterise rhodiola root: rosavins (rosavin, rosin, rosarin — cinnamyl glycosides) and salidroside (a phenylethanoid glycoside). Salidroside occurs across several Rhodiola species. Rosavins do not: they are found only in Rhodiola rosea.
That single fact is what makes standardisation meaningful. A label that states a verified rosavin content is telling you the material is the genuine species — adulterated or substituted root physically cannot hit the number. The classic specification, used in much of the clinical literature, is 3% rosavins and 1% salidrosides, mirroring the roughly 3:1 ratio the two occur in naturally in authentic root.
This is the specification printed on the supplement-facts panel of Cortisol Balance — 200mg of Rhodiola rosea extract at 3% rosavins, 1% salidrosides, verified by independent third-party testing.
The human research, linked directly.
Rhodiola rosea extract has been tested in randomised, double-blind, placebo-controlled human trials, largely in fatigue-related settings. We link the papers rather than paraphrase their conclusions; read them and draw your own conclusions.
- Darbinyan V, Kteyan A, Panossian A, Gabrielian E, Wikman G, Wagner H (2000). 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 7(5):365–371. PubMed →
- Olsson EM, von Schéele B, Panossian AG (2009). 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 Medica 75(2):105–112. PubMed →
- Hung SK, Perry R, Ernst E (2011). The effectiveness and efficacy of Rhodiola rosea L.: a systematic review of randomized clinical trials. Phytomedicine 18(4):235–244. A cautious systematic review noting that trial quality varies — worth reading alongside the individual studies. PubMed →
What we do not say: no EU/UK health claim is authorised for rhodiola. The systematic review above explicitly notes mixed trial quality — which is precisely why we link the sources instead of summarising them into promises. Vitality has no involvement in this research.
Safety and who should avoid it.
In published trials, standardised rhodiola extract was generally reported as well tolerated over study durations. The standard food-supplement cautions apply:
- Pregnant or breastfeeding: do not use — consult a doctor.
- On medication or under medical supervision: speak to your doctor or pharmacist before use.
- Under 18: not for use.
- Buying rhodiola anywhere: insist on a stated rosavin/salidroside specification — it is the only way to know the species.
- Discontinue and consult a doctor if any adverse reaction occurs; food supplements must not replace a varied, balanced diet.
Frequently asked questions.
A succulent flowering plant of the stonecrop family that grows in cold, mountainous and arctic regions of Europe and Asia. Its golden rhizome has centuries of traditional use in Scandinavia and Russia, and modern supplements use root extracts standardised to rosavin and salidroside content.
Rosavins (rosavin, rosin, rosarin) are cinnamyl glycosides found only in Rhodiola rosea. Because they are species-exclusive, a verified rosavin percentage proves the material is genuine Rhodiola rosea rather than a cheaper related species — a documented adulteration problem in commercial rhodiola.
It is the classic standardisation used across much of the clinical literature, mirroring the roughly 3:1 ratio the two marker compounds occur in naturally in authentic root. Cortisol Balance states this specification on its supplement-facts panel.
We make no such claim — no EU/UK health claim is authorised for rhodiola. Randomised trials in fatigue-related settings exist and are linked in this guide, alongside a systematic review that notes trial quality varies. Read them directly.
The SHR-5 trials used standardised extract in repeated daily doses; Olsson 2009 used 576mg daily of a 4:1 extract. Cortisol Balance provides 200mg of 3%/1% standardised extract per serving as one of seven ingredients. Follow the label; do not exceed the stated dose.
Anyone pregnant or breastfeeding, anyone under 18, and anyone on medication or with a medical condition without speaking to a doctor first.
Cortisol Balance contains 200mg of Rhodiola rosea extract (3% rosavins, 1% salidrosides) as part of a 7-ingredient, 925mg complex — alongside 300mg KSM-66® Ashwagandha, phosphatidylserine, L-theanine, magnesium glycinate, vitamin C and vitamin B5, every one individually dosed.
Standardised rhodiola, printed on the panel.
Cortisol Balance pairs 200mg of 3%/1% standardised Rhodiola rosea with 300mg KSM-66® Ashwagandha and five more individually dosed ingredients — 925mg per serving, no proprietary blend, independently third-party tested.
View Cortisol Balance →About Vitality Supplements
Vitality Supplements is a UK supplement brand built on full-dose transparency: every ingredient named and individually dosed, third-party tested at an ISO/IEC 17025 accredited laboratory, and every guide referenced to primary literature. Our guides are educational; they describe compounds and research factually and are not medical advice. Food supplements must not replace a varied, balanced diet and healthy lifestyle.
Reviewed & updated: August 2026 · Vitality Supplements, London