Brain Forza | KSM-66 Ashwagandha Root Capsules - 90ct
Brain ForzaClinical-Dose KSM-66® Ashwagandha Root Extract
- ✦Full 1,000mg clinical dose, not under-dosed — the exact amount used across published KSM-66 human trials for cortisol reduction, stress scores, testosterone support, and cognitive performance; most competitors cut costs at 300–600mg where research outcomes weaken significantly
- ✦Root-only, clean water extracted — no chemical solvents, no leaf or stem dilution; preserves the full-spectrum withanolide complex with <0.1 Withaferin A (the cytotoxic compound cheaper extracts leave in at higher levels)
- ✦10+ year direct sourcing partnership — Brain Forza® sources KSM-66 directly from the original manufacturer with Herb ID Tracking verifying botanical identity at the source; not a white-label rebrand from an anonymous broker
- ✦Single ingredient, zero fillers — nothing in the capsule except KSM-66 ashwagandha root extract; Organic, GRAS Affirmed, Kosher, Halal, and Herb ID Tracked across the full supply chain
- ✦Under $0.56 per full-dose serving — 45 servings of the world's most clinically studied ashwagandha in vegetarian capsules; non-GMO, gluten-free, made in the USA (note: contains trace milk from traditional Ayurvedic preparation)
Brain Forza® KSM-66® Ashwagandha Root Capsules | 1,000mg Per Serving | 5% Withanolides | Full-Spectrum Root-Only Extract | Organic | Non-GMO | 90 Capsules | 45 Servings
✓ 1,000mg KSM-66® Per Serving ✓ 5% Withanolides ✓ Full-Spectrum Root Only ✓ Organic ✓ Non-GMO ✓ GRAS Affirmed ✓ Herb ID Tracked ✓ Made in USA
Brain Forza® delivers the clearest, most uncompromising expression of the world's most studied adaptogen with their KSM-66® Ashwagandha Root Capsules — a single-ingredient formula built entirely around one conviction: when the ingredient is this good, nothing else needs to be added. Each bottle provides 90 vegetarian capsules (45 servings of 2 capsules), with every serving delivering a full 1,000mg of Organic KSM-66® Ashwagandha Root Extract standardized to 5% Withanolides with <0.1 Withaferin A — the exact branded extract used in the vast majority of published clinical research on ashwagandha, sourced directly from the original KSM-66 manufacturer through a 10+ year direct partnership. The extract is produced through a clean water extraction process — no chemical solvents — preserving the full-spectrum withanolide complex from the root only, with no leaves, stems, or lower-quality root parts diluting the potency. This is the gold standard of ashwagandha supplementation: the most clinically documented extract form, at the full 1g clinical dose, in a formula with no added fillers. Organic, Non-GMO, Vegetarian, Gluten-Free, GRAS Affirmed, Kosher, and Halal certified — and Herb ID Tracked for botanical identity verification at the source. Manufactured in the USA. Note: contains trace milk from the traditional Ayurvedic root preparation process. At $24.95 for 45 full-dose servings, this is the most accessible way to access the highest-quality ashwagandha extract available, from a brand with over a decade of direct sourcing expertise.
What Makes This Product Unique
- 1,000mg Per Serving — The Full Clinical Dose - Brain Forza specifically confirms this is "the full daily clinical dose of 1,000mg" — the amount used across the majority of published KSM-66 human studies demonstrating measurable outcomes in cortisol reduction, stress scores, testosterone, cognitive performance, and athletic recovery. Most ashwagandha supplements dose at 300–600mg per serving — below the clinical threshold where the most significant outcomes are documented. Brain Forza does not under-dose to save cost.
- KSM-66® — Root Only, Full Spectrum, Clean Water Extracted - KSM-66 is produced through a proprietary clean-water extraction process — no chemical solvents, no heat degradation — that concentrates the withanolide complex from ashwagandha root exclusively, with no leaf, stem, or root bark material. Root-only extraction matters: the withanolide profile of ashwagandha root is distinct from the leaf and stem, and the majority of clinical research is based on root extracts. The <0.1 Withaferin A specification is also important — Withaferin A is a withanolide compound found at higher concentrations in leaf-based extracts that is associated with cytotoxic activity at high doses. KSM-66's strict <0.1 Withaferin A control ensures a safe, clean withanolide profile.
- 10+ Year Direct Sourcing Partnership with the KSM-66 Manufacturer - Brain Forza does not purchase KSM-66 from a distributor — they source directly from Ixoreal Biomed, the original manufacturer of KSM-66, through a relationship established over 10+ years. This direct sourcing ensures freshness, batch traceability, access to the latest clinically validated material, and supply chain transparency that intermediary-purchased KSM-66 cannot guarantee.
- Zero Added Fillers — The Formula Is the Extract - Brain Forza explicitly states "no added fillers or low-grade alternatives" in the formula description. This is consistent with their broader brand philosophy: no magnesium stearate, no silicon dioxide, no unnecessary flow agents or fillers that pad the label without contributing to efficacy. The only inactive ingredient is the vegetarian capsule shell. The capsule contains the extract. Full stop.
- Herb ID Tracked — Botanical Identity Verified at the Source - Brain Forza's Herb ID Tracking program independently verifies that the botanical material in each capsule is genuinely Withania somnifera root — not an adulterant, substitute, or misidentified material. This addresses an industry-wide problem with herbal supplements and provides a verifiable layer of identity assurance beyond standard potency testing.
- Traditional Ayurvedic Milk Preparation — The Full-Activation Method - True to the 5,000-year Ayurvedic tradition, the ashwagandha roots used in KSM-66 are soaked in milk as part of the extraction preparation — a process prescribed in classical Ayurvedic texts that is believed to increase the bioavailability and activation of the withanolide complex. Brain Forza maintains this traditional preparation specifically because it reflects how ashwagandha has been used throughout its documented therapeutic history. Note: this process introduces trace milk proteins — disclosed clearly for those with dairy sensitivities.
- GRAS Affirmed | Kosher | Halal | Non-GMO | Vegetarian | Gluten-Free - KSM-66 carries GRAS (Generally Recognized As Safe) affirmation — one of the highest safety designations available for dietary supplement ingredients — alongside Kosher and Halal certifications, confirming its suitability across a broad range of dietary and religious requirements. Non-GMO, Vegetarian, and Gluten-Free formulation ensures compatibility with virtually all dietary needs.
Key Benefits
- Supports Healthy Stress Resilience and Cortisol Regulation - KSM-66®'s most consistently documented clinical outcome is cortisol reduction. Multiple published randomized controlled trials demonstrate statistically significant reductions in serum cortisol and standardized stress assessment scores in subjects taking 1g/day of KSM-66 for 8–12 weeks. By modulating the HPA axis — the hormonal cascade that governs the body's cortisol stress response — KSM-66 helps the body mount a more proportional, controlled response to stressors rather than the exaggerated cortisol spike characteristic of chronic stress.
- Promotes Mental Clarity, Focus, and Cognitive Performance - KSM-66 has been specifically studied for cognitive outcomes including memory, processing speed, and working memory in published human trials. Its cortisol-reducing effects protect the prefrontal cortex — the brain region most directly suppressed by chronic cortisol — and its withanolide compounds have documented neuroprotective properties. Brain Forza reports that many users experience enhanced focus and mental energy within 30–45 minutes of taking a serving.
- Supports Healthy Mood and Emotional Balance - By reducing cortisol and the HPA axis over-activation that drives stress-related mood dysregulation, KSM-66 supports a more stable, positive emotional baseline. The adaptogenic effects on the HPA axis also indirectly support serotonergic and dopaminergic tone — the neurotransmitter systems that govern mood, motivation, and emotional resilience — by reducing the cortisol-driven suppression of receptor sensitivity in these systems.
- Promotes Muscle Strength and Physical Performance - Published clinical research on KSM-66 specifically documents improvements in muscle strength, bench press and leg press loads, and body composition in resistance-trained subjects supplementing at 1g/day over 8 weeks compared to placebo. KSM-66's cortisol reduction is central to this benefit: cortisol is a catabolic hormone that degrades muscle tissue between training sessions, and lower post-workout cortisol supports a more anabolic recovery environment.
- Supports Testosterone and Male Vitality - Multiple KSM-66 clinical trials have specifically studied male hormonal outcomes, demonstrating statistically significant increases in testosterone levels, improvements in sperm count and motility, and greater self-reported vitality scores compared to placebo. The mechanism is primarily cortisol reduction — cortisol and testosterone share upstream hormonal precursor pathways, and lower chronic cortisol allows more precursor material to be directed toward testosterone synthesis.
- Supports Endurance, VO2 Max, and Oxygen Efficiency - KSM-66 has been studied specifically for its effects on aerobic capacity, with published research demonstrating improvements in VO2 max and athletic endurance in cyclists and other endurance athletes. The mechanisms include reduced exercise-induced cortisol, improved mitochondrial efficiency under physical stress, and enhanced skeletal muscle recovery between training sessions.
- Promotes Deep, Restorative Sleep Quality - KSM-66 has published trials specifically demonstrating improvements in sleep quality, sleep onset time, and sleep duration — outcomes linked directly to the cortisol-lowering effect, as elevated evening cortisol is one of the primary drivers of difficulty falling asleep and poor sleep architecture in chronically stressed adults. Better sleep amplifies every other benefit the formula provides: muscle recovery, hormone production, memory consolidation, and immune function all depend critically on sleep depth and duration.
How It Works
Ashwagandha (Withania somnifera) has been used in Ayurvedic medicine for over 5,000 years — making it one of the oldest continuously documented therapeutic botanicals in human history. In Sanskrit, Ashwagandha means "smell of horse" — a reference not to the plant's scent but to the traditional belief that it imparts the strength and vitality of a horse to those who use it. Modern clinical pharmacology has now produced the most rigorous body of evidence on any adaptogenic plant, and the results of that research affirm what traditional practitioners observed over millennia: ashwagandha genuinely and measurably reduces the physiological impact of stress on the human body, while simultaneously supporting strength, cognition, hormone balance, and immune function. KSM-66® — developed over 14 years of research by Ixoreal Biomed and launched in 2010 — is the branded, standardized root extract that represents the state of the art in ashwagandha science. With over 24–40+ published human clinical trials specifically using KSM-66 material, it is the most research-backed single dietary supplement ingredient available in the adaptogen category.
Ashwagandha's primary active compounds are withanolides — a class of naturally occurring steroidal lactones unique to Withania somnifera. The withanolide complex standardized in KSM-66 at 5% concentration includes withanoside IV, withanoside VI, withaferin A (at <0.1, the controlled safe threshold), and several dozen additional withanolide compounds in their naturally occurring ratios from the whole root. The primary mechanism by which withanolides produce ashwagandha's signature effects is modulation of the HPA (hypothalamic-pituitary-adrenal) axis — the central hormonal cascade that governs how the body responds to stressors. Under chronic stress conditions, the HPA axis becomes chronically over-activated, producing persistently elevated cortisol that, over time, suppresses immune function, degrades lean muscle tissue, impairs memory and prefrontal cortex function, disrupts sleep architecture, and depletes the hormonal precursors needed for testosterone and other anabolic hormone production. Withanolides modulate HPA axis sensitivity at the receptor level — supporting healthier cortisol receptor feedback so that subsequent stressors trigger a more proportional, measured response rather than a chronic over-reaction.
The practical outcomes of this HPA axis modulation — documented across multiple randomized, placebo-controlled human trials — are comprehensive and clinically meaningful. Cortisol reduction: published trials show 14–32% reductions in serum cortisol at the 1g/day dose. Stress and anxiety scores: significant improvements on standardized scales (PSS, HAM-A, DASS-21) compared to placebo. Testosterone: statistically significant increases in testosterone in male subjects, particularly when combined with resistance training — consistent with the theory that lower cortisol protects upstream hormonal precursors for androgenic synthesis. Muscle strength: significant improvements in bench press and leg press outcomes in 8-week resistance training trials with KSM-66 supplementation. Cognitive function: improvements in reaction time, memory acquisition, and cognitive accuracy in both young adults and aging populations. Sleep quality: improvements in sleep onset, sleep duration, and subjective sleep quality scores. The breadth of these outcomes across such distinct physiological domains — normally the signature of a pharmaceutical compound affecting a single global regulatory system — reflects KSM-66's action on the HPA axis, which truly is a global regulatory system touching immune function, neurological performance, hormonal balance, metabolic efficiency, and physical recovery simultaneously.
The clean water extraction process used to produce KSM-66 — without chemical solvents, harsh reagents, or heat that degrades thermolabile withanolides — preserves the full-spectrum compound ratio as it occurs in the whole root. This is pharmacologically important: the therapeutic effects of the whole plant extract are attributed to the synergistic action of its complete withanolide mixture rather than any single isolated compound. Extracts produced through chemical solvent processing alter the natural compound ratios and may concentrate some withanolides while degrading others — changing the biological activity profile in ways that are difficult to predict and study. Brain Forza's commitment to sourcing KSM-66 directly from its original manufacturer for over 10 years ensures that every batch of their ashwagandha reflects the same material used in the published clinical research that validates KSM-66's effects — not a later, reformulated, or substituted version from an intermediary supplier.
Why Trust Brain Forza®
- 10+ Year Direct Sourcing Partnership — Material From the Original Manufacturer - Brain Forza sources KSM-66 directly from Ixoreal Biomed — the company that developed, patented, and manufactures KSM-66 — through a relationship established over 10+ years. This is not a commodity purchase from a bulk ingredient distributor. It is a direct, verified supply chain that guarantees material freshness, batch traceability, and access to the latest clinically validated KSM-66 material.
- Herb ID Tracked — Identity Verification Beyond Standard Testing - Every batch of Brain Forza KSM-66 undergoes botanical identity verification through their Herb ID Tracking program — confirming that the material is genuinely Withania somnifera root, not an adulterant or lower-quality substitute. This goes beyond standard potency testing and addresses the ingredient identity problem documented across the herbal supplement industry.
- Non-GMO Only | Made in USA | Correct Servings | Active-Form Ingredients - Brain Forza's four non-negotiable quality pillars govern every product they make. "Correct Servings" is particularly relevant here: 1,000mg of KSM-66 at 5% withanolides per serving is the dose that corresponds to the clinical research outcomes. Brain Forza does not reduce the dose to extend bottle count or improve margins.
- KSM-66 Is Independently GRAS Affirmed, Kosher, and Halal - The KSM-66 ingredient itself carries independent GRAS affirmation — one of the highest safety designations available for dietary ingredients — along with Kosher and Halal certifications. These credentials belong to the KSM-66 material itself, not just to Brain Forza's label claims, providing a layer of verified quality that extends beyond the manufacturer's own assertions.
- Boutique Adaptogens Specialist — Not a Mass-Market Brand - Brain Forza is a focused adaptogen and functional mushroom specialist — not a large volume multi-category supplement company. This means their KSM-66 product gets the attention, expertise, and sourcing rigor of a team whose professional identity is built around knowing exactly what goes into their adaptogen formulas and why.
- 4.8/5 Stars | Repeat Customers | 90-Day Quality Warranty - Brain Forza KSM-66 carries a 4.8 out of 5 star rating from verified purchasers, with customers describing years of consistent daily use with no decline in product quality. Brain Forza backs their product line with a 90-day quality warranty — a confidence level that reflects genuine commitment to the consistency of their sourcing and manufacturing.
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How to Use
Serving Size: 2 Capsules (1,000mg KSM-66® Ashwagandha Root Extract)
Servings Per Container: 45 (90 Capsules Total)
Directions: Take 2 capsules daily with water, with or without food, or as directed by your healthcare provider. Can be taken as 1 capsule in the morning + 1 capsule in the evening for a split-dose approach, or as 2 capsules together at one time.
Best Taken: Brain Forza recommends taking 2 capsules after your workout, when cortisol is naturally elevated from exercise-induced physical stress. This timing allows KSM-66 to moderate the post-exercise cortisol spike and create a more anabolic recovery environment for muscle repair and growth. For those not exercising, morning or early afternoon use with a meal is preferred.
For Sleep and Evening Use: Taking 2 capsules in the evening (60–90 minutes before bed) leverages KSM-66's cortisol-reducing effects to lower elevated evening cortisol — one of the most common drivers of difficulty falling asleep and poor sleep quality. Many users report notably improved sleep onset and depth when using KSM-66 in the evening specifically.
Dosage Flexibility: Some benefits of KSM-66 are documented at lower doses — 500mg/day shows meaningful stress and mood support in clinical research. Users who are sensitive to adaptogens may start with 1 capsule (500mg) for the first 1–2 weeks before advancing to the full 2-capsule (1,000mg) serving. The 1g/day dose is Brain Forza's clinical recommendation for maximum outcomes.
Results Timeline: Many users notice enhanced focus and energy within 30–45 minutes of taking the first serving. Full adaptogenic benefits — stable stress resilience, hormonal balance, improved sleep, and physical performance outcomes — develop with consistent daily use over 1–2 weeks, with published trials documenting peak cortisol reduction and testosterone support outcomes at 8–12 weeks of uninterrupted use. Adaptogens are cumulative — consistency unlocks the full benefit.
Important Notes: Not recommended during pregnancy or nursing. Consult your healthcare provider before use if you take prescription medications or have any medical condition. Discontinue use if unusual symptoms occur. Manufactured in a facility that processes wheat, gluten, soy, milk, egg, shellfish, and tree nuts. Contains trace milk from the traditional Ayurvedic root preparation process.
Storage: Store in a cool, dry place away from direct sunlight and moisture. Keep the bottle tightly sealed. No refrigeration required. Shelf-stable for the full labeled shelf life when stored correctly.
Customer Reviews
"Take two after my workout every day. Recovery is faster and I don't feel that anxious crash I used to get in the evenings."
- Brandon Z.
"KSM-66 is the only ashwagandha I trust. Brain Forza's sourcing story sold me and the product delivers. Been using it for months."
- Hannah P.
"Sleeping so much better since I started taking two before bed. Fast shipping from Masterpiece and the quality is exactly what I expected."
- Christina N.
"Take two after my workout every day. Recovery is faster and I don't feel that anxious crash I used to get in the evenings."
- Brandon Z.
"KSM-66 is the only ashwagandha I trust. Brain Forza's sourcing story sold me and the product delivers. Been using it for months."
- Hannah P.
"Sleeping so much better since I started taking two before bed. Fast shipping from Masterpiece and the quality is exactly what I expected."
- Christina N.
Frequently Asked Questions
What is Brain Forza® KSM-66® Ashwagandha and what makes it different from generic ashwagandha?
What is KSM-66® and why is it considered the gold standard?
Why does this formula contain trace milk?
When is the best time to take Brain Forza KSM-66 Ashwagandha?
How long before I notice results from KSM-66 Ashwagandha?
Can I take Brain Forza KSM-66 with other supplements?
How does KSM-66 differ from the ashwagandha in Brain Forza Adapt All?
Is Brain Forza KSM-66 Ashwagandha safe for long-term daily use?
Where can I buy Brain Forza® KSM-66® Ashwagandha online?
Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 45 (90 Capsules Total)
- Organic KSM-66® Ashwagandha Root Extract (Withania somnifera) — 1,000mg per serving (500mg per capsule)
Standardized to: 5% Withanolides | <0.1 Withaferin A
KSM-66® is a full-spectrum, root-only ashwagandha extract produced through a proprietary clean-water extraction process — no chemical solvents. Standardized to 5% withanolides, the naturally occurring steroidal lactone compounds responsible for ashwagandha's documented adaptogenic, anti-stress, cognitive, and hormonal effects. Withaferin A is controlled to <0.1 — the strict safety threshold that ensures a therapeutically active but cytotoxicity-free withanolide profile. The root-only sourcing ensures the extract reflects the specific plant material used in published clinical research, not a diluted leaf/stem mixture. Sourced direct from manufacturer Ixoreal Biomed through a 10+ year direct partnership. Backed by 24–40+ published human clinical trials. Prepared using traditional Ayurvedic milk-soaking method — trace milk present. GRAS Affirmed, Kosher, Halal, Non-GMO, Vegetarian, Gluten-Free.
Other Ingredients: Vegetarian Capsule (HPMC). No added fillers, binders, or artificial additives.
Allergen Warning: Contains trace milk from traditional Ayurvedic preparation. Manufactured in a facility that processes wheat, gluten, soy, milk, egg, shellfish, and tree nut ingredients. Do not use during pregnancy or nursing.
Quality Standards: Organic | Non-GMO Only | Herb ID Tracked | Made in USA | Correct Servings | No Added Fillers | GRAS Affirmed | Kosher | Halal | Vegetarian | Gluten-Free
Recommended Stack
Brain Forza KSM-66 Ashwagandha is the world's best single adaptogen at its best dose — and the most strategic additions are supplements that extend its stress, performance, and sleep benefits into areas a pure ashwagandha formula structurally cannot cover on its own. Brain Forza® Adapt All is the most natural upgrade path: it contains the same 1,000mg KSM-66 at the same Brain Forza sourcing standard, surrounded by seven additional clinically studied adaptogens and nootropic botanicals — Bacopin® Bacopa at 700mg, Rhodiolife® Rhodiola at 150mg, Lemon Balm at 600mg, Panax Ginseng at 200mg, Cordyceps at 140mg, Schisandra at 125mg, and PureLeaf™ Ginkgo at 120mg. For customers who want the full multi-adaptogen protocol, Adapt All is the obvious evolution. Brain Forza® Magnesium Complete+ is the most important daily companion from the same brand — magnesium is an essential mineral cofactor in the GABA synthesis, neurotransmitter production, and ATP energy pathways that KSM-66's cortisol reduction unlocks. The Magnesium Complete+ also includes AlphaWave® L-Theanine and ALCAR for additional cognitive calm and mitochondrial energy support that layers directly with KSM-66's benefits. NutraChamps Calm Gummies add the GABAergic nervous system calming layer — Lemon Balm's GABA-transaminase inhibition, L-Theanine's alpha-wave support, supplemental GABA, and Vitamin B6 as serotonin synthesis cofactor — covering the neurological stress pathways that KSM-66's hormonal mechanism doesn't specifically target. For an evening botanical relaxation layer that pairs with KSM-66's sleep-quality benefits, Kats Botanicals Wild Red Bali Kratom Capsules are an excellent natural complement — red vein kratom is the calm, mellow wind-down variety (distinct from green for balanced energy or white for focus), providing a natural botanical relaxation that works through alkaloid mechanisms entirely distinct from ashwagandha's withanolide pathways. Kats Botanicals' pre-measured 600mg loose-leaf capsules are AKA GMP certified, lab-tested, and the ideal format for anyone new to kratom.
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


