Overview
Spinach/Rhaponticum-derived steroid with anabolic claims.
- Endogenously produced or biosynthesized molecule
- Standardized pharmaceutical- or food-grade supplement
- Combined with cofactors that improve absorption or activity
- Capsule or softgel
- Powder
- Sublingual or buccal
- Liposomal liquid
Mechanism of action
Likely ER-β agonism; some evidence for mTOR activation.
- · Likely ER-β agonism
- · some evidence for mTOR activation
Effects on the body
Organ system effects
Ecdysterone (Isolated) influences muscle protein synthesis, neuromuscular output, or recovery from exercise.
Evidence-based benefits
Increases lean mass with resistance training
Limited evidencePotential side effects
- · WADA banned
Drug interactions
Supplement interactions
- Creatine monohydrateFoundational support for strength, power, and lean mass.
- Whey or EAAsProvides amino acid substrate for muscle protein synthesis.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Ecdysterone (Isolated) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Ecdysterone (Isolated) third party tested NSF
CapsulesPre-measured Ecdysterone (Isolated) capsules — easiest for travel and consistent daily dosing without scoops or scales.Ecdysterone (Isolated) capsules
PowderBulk unflavored Ecdysterone (Isolated) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Ecdysterone (Isolated) powder unflavored
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Ecdysterone in athletes
Parr MK, et al.
Trial supplementing trained athletes.
Anabolic effects without androgen-receptor binding.
PubMed: Ecdysterone (Isolated) — Increases lean mass with resistance training
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