What Is KSM-66® Ashwagandha?
KSM-66® Ashwagandha is a high-concentration, full-spectrum root extract derived from Withania somnifera, a plant used traditionally in Ayurvedic medicine to support vitality, resilience, and overall wellbeing.
Produced by Ixoreal Biomed, KSM-66® uses a unique water-based extraction process that preserves the natural balance of active compounds, particularly withanolides, without the use of alcohol or chemical solvents.
This approach ensures consistency, purity, and a profile.
- Standardised to ≥5% withanolides
- Root-only extract
- Full-spectrum composition
- Clinically tested in 34+ human studies
How KSM-66® Works in the Body
KSM-66® supports the body through multiple biological systems involved in stress, mood, and recovery.
KSM-66® mode of action is proposed to regulate the hypothalamic-pituitary-adrenal (HPA) axis, the system responsible for controlling the body's stress response. By supporting this pathway, it assists in maintaining healthy cortisol levels.
KSM-66® is thought to influence key brain chemicals involved in mood and cognition, including:
- Serotonin (mood balance)
- Dopamine (motivation and focus)
- GABA (calmness and relaxation)
It also supports the body's natural defence systems by helping reduce oxidative stress and inflammation, which can impact recovery and overall wellbeing.
Clinical Evidence Supporting KSM-66®
KSM-66® is one of the most extensively studied ashwagandha extracts, with over 34 human clinical trials published in peer-reviewed journals.
Up to 27% reduction in serum cortisol levels
Improved perceived stress and emotional balance
Increased muscle strength and recovery in resistance-trained individuals
Support for healthy testosterone levels in men
Support memory, mental recall, synthesis of neurotransmitters, brain function.
These studies typically involve daily supplementation over 8–12 weeks, demonstrating consistent benefits across different populations.
KSM-66® vs Other Ashwagandha Extracts
Not all ashwagandha extracts are the same. Differences in plant part, extraction method, and clinical research can influence how each extract performs in the body.
Comparison: KSM-66® vs Sensoril® vs Shoden®
| Ashwagandha Type | Plant Part Used | Withanolide Content | Extraction Method | Focus | Clinical Evidence |
|---|---|---|---|---|---|
| KSM-66® | Root only | ≥5% | Water-based | Balance of actives, holistic extract | 34+ RCTs |
| Sensoril® | Root + Leaf | 10% | Alcohol-based | Higher potency, shorter-term stress focus | 10+ RCTs |
| Shoden® | Root + Leaf | 35% (glycowithanolides) |
Solvent-based | Fast-acting energy and cognition | 6+ RCTs |
KSM-66® offers a root-only composition aligned with Ayurvedic tradition and backed by the largest clinical research portfolio of any ashwagandha extract.
Ixoreal Biomed. KSM-66® Ashwagandha Technical Dossier
Natreon Inc. Sensoril® Ashwagandha Product Monograph
Arjuna Natural. Shoden® Ashwagandha Clinical & Technical Data
Chandrasekhar et al., 2012. Indian J Psychol Med
Wankhede et al., 2015. J Int Soc Sports Nutr
Health Benefits of KSM-66® Ashwagandha
KSM-66® helps the body adapt to physical and emotional stress, helping support emotional wellbeing and relieves symptoms of mild anxiety.
By supporting neurotransmitter activity, it assists with brain function, memory, mental recall and maintaining a healthy balanced mood during periods of stress.
In active individuals and male athletes, KSM-66® supports:
- Muscle strength and endurance
- Recovery after exercise
- Healthy body composition
Used as an aphrodisiac, KSM-66® supports:
- Healthy libido in men and women
- Reproductive hormone balance in males
- Sexual wellbeing
By supporting a healthy stress response in the body and supporting the nervous system function, KSM-66® helps reduce sleeplessness and improve overall sleep quality, supporting recovery and daily performance.
KSM-66® vs Other Ashwagandha Extracts
Not all ashwagandha extracts are the same. KSM-66® stands out due to its composition, extraction method, and clinical validation.
Key Differences
In comparison, some extracts use both root and leaf material or higher withanolide concentrations, which may alter their intended effects or application.
KSM-66® is designed to provide a balanced, holistic support for the body's stress response rather than targeting a single outcome.
Dosage, Timing & Usage
Clinical studies on KSM-66® typically use 600 mg per day, taken consistently over several weeks.
General Guidance
Results are often observed within 6–8 weeks.
Timing
Can be taken in the morning or evening depending on individual needs.
Consistency
Consistency is key for optimal results.
Directions
Individuals should follow product-specific directions and consult a healthcare professional if unsure.
Safety & Considerations
KSM-66® has been evaluated for safety and tolerability in multiple studies, with no significant adverse effects reported when used as directed.
Considerations
Why Bioglan Uses KSM-66®
At Bioglan, ingredient selection is driven by scientific evidence, quality, and consistency.
Which type of Ashwagandha is right for you?


Sensoril: Ashwagandha
- Relieves Symptoms of Stress
- Maintain General Health & Wellbeing
- Supports Healthy Stress Response in the Body


KSM-66® Ashwagandha
- Improve Sleep Quality
- Support Brain Function
- Relieve Symptoms of Mild Anxiety
- Supports Healthy Stress Response in the Body


Shoden: Magnesium + Ashwagandha
- Enhanced Deep Sleep
- Reduce Time to Fall Asleep
- Relieve Symptoms of Mild Anxiety
- Support Muscle Relaxation when
Dietary Intake is Inadequate
