← All actives

Full-spectrum ashwagandha root extract

KSM-66® Ashwagandha

The root-only, full-spectrum ashwagandha extract.

Brand / technology by Ixoreal Biomed

KSM-66® is the root-only ashwagandha extract in our formula. Standardised to 5% withanolides and identified in published human studies, it gives our daily capsules a documented ingredient foundation.

Why this matters

Root-only ashwagandha with a defined specification and published human research.

A precisely specified root extract

KSM-66® uses the ashwagandha root and a defined 5% withanolide concentration. The plant part, extract and concentration are stated clearly in our formula.

Published human research

KSM-66® is identified in published human studies, including a 60-day placebo-controlled study in 64 adults. This research is one of the reasons we selected the named extract.

600 mg in your daily serving

Our two-capsule daily serving provides 600 mg KSM-66® extract, including 30 mg withanolides. It is a straightforward way to include this specified root extract in your routine.

Explore the evidence and details

The technology

KSM-66® is standardised to ≥5% withanolides (measured by HPLC) and is produced with a proprietary “Green Chemistry” extraction — water-based, with no alcohol or chemical solvents. “Full-spectrum” means it aims to keep the natural balance of the root’s constituents rather than concentrating a single fraction.

A large clinical program

KSM-66® has been used in multiple randomised, double-blind, placebo-controlled human trials. The sources below describe the participants, duration and measurements.

Published research

Selected peer-reviewed human trials that used KSM-66® specifically:

  • Chandrasekhar et al. (2012)

    Randomised, double-blind, placebo-controlled trial (n=64) in adults with a history of chronic stress; investigated perceived-stress scales and serum cortisol over 60 days.

    Indian Journal of Psychological MedicinePubMed/MEDLINE · RCT

    PubMed ↗

  • Salve et al. (2019)

    Randomised, double-blind, placebo-controlled trial (n=60 healthy adults), three arms over 8 weeks; investigated stress scales, serum cortisol and a sleep-quality measure.

    CureusPubMed

    PubMed ↗

  • Wankhede et al. (2015)

    Randomised, double-blind, placebo-controlled trial (n=57 men) alongside an 8-week resistance-training program; investigated muscle strength, body composition and recovery markers.

    Journal of the International Society of Sports NutritionPubMed/MEDLINE · RCT

    PubMed ↗

Powers this product