Maral root

Rhaponticum carthamoides (Maral Root or Russian Leuzea) is a plant source of ecdysteroids (including 20-hydroxyecdysone), compounds marketed for muscle-building effects through non-hormonal mechanisms. Popular in Russian sports/bodybuilding. NO GRADED OUTCOMES - human research is lacking despite theoretical interest. Ecdysteroids don't bind androgen receptors but may affect protein synthesis via other pathways (Akt/mTOR proposed). The ecdysteroid content varies widely by product. Without human trials validating muscle-building claims, this remains speculative.

Quick Answer

What it is

Rhaponticum carthamoides (Maral Root or Russian Leuzea) is a plant source of ecdysteroids (including 20-hydroxyecdysone), compounds marketed for muscle-building effects through non-hormonal mechanisms. Popular in Russian sports/bodybuilding.

Key findings

  • Grade D: Muscle Protein Synthesis
  • Grade D: Antioxidant Activity
  • Grade D: Stress Resilience

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts: Maral root

Quick Facts: Maral root

  • Best Evidence:Grade D
  • Conditions Studied:3
  • Research Outcomes:4
  • Key Effect:Aging & Longevity
Outcomes by grade:
A0
B0
C0
D4
3 conditions · 4 outcomes

Detailed Outcomes

|
D
Muscle Protein Synthesis
In rodent models, ecdysteroids from Rhaponticum carthamoides have shown effects on protein synthesis, and in vitro studies suggest activation of the Akt/mTOR pathway in muscle cells without androgen receptor binding. No quality human clinical trials have validated these effects.
smallImproves
D
Antioxidant Activity
A pharmacological review noted antioxidant properties among the broad biological effects of R. carthamoides preparations. A 2025 C. elegans study demonstrated enhanced resistance to paraquat-induced oxidative stress following treatment with maral root extract and 20-hydroxyecdysone.
smallImproves
D
Stress Resilience
In a C. elegans model, maral root extract and its primary ecdysteroid 20-hydroxyecdysone significantly enhanced heat stress resistance and improved motility and chemosensory function in both young and aged organisms. A review of pharmacological research supports traditional adaptogenic use.
smallImproves
D
Longevity
A 2025 study in C. elegans found that maral root extract extended both lifespan and healthspan in nematodes, with 20-hydroxyecdysone (ecdysterone) identified as the primary bioactive compound. This is a very preliminary invertebrate model with no mammalian or human replication.
smallImproves

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