Optibio KSM-66® Ashwagandha

Feel calmer.
Sleep deeper.
Stay sharp.

A full 600 mg daily dose of root only KSM-66® Ashwagandha, third party tested for a calmer mind, deeper rest, and sharper daily focus.

From $0.63/day 90 Day Guarantee Third Party Tested Free Shipping $75+
90 Day Money Back Guarantee • Free Shipping Over $75
600mg
Clinical Dose
90
Capsules
90
Day Guarantee
5:1
Root Extract
Optibio KSM-66 Ashwagandha bottle

Feel the benefits. Every day.

A calmer routine should feel simple, premium, and easy to trust from the first bottle.

Calm

Helps your body manage stress and promote a sense of calm.

Daily calm support

Sleep

Supports deeper, more restorative sleep naturally.

Nightly reset

Focus

Enhances mental clarity, memory, and concentration.

Clean focus

Resilience

Strengthens your body's ability to adapt and stay balanced.

Stress resilience
KSM-66® Ashwagandha root extract
The Power of KSM-66®

The world's most trusted ashwagandha root extract.

KSM-66® is a full spectrum, clinically studied extract made only from ashwagandha root. Backed by 50+ human clinical studies and over a decade of research.

600 mg daily dose5% withanolidesRoot only extract
High concentration5% Withanolides
Full spectrumRoot only extract
Clinically studied50+ human studies
KSM-66® Ashwagandha, patented extraction, solvent free process, sustainable and ethical sourcing
Build your routine

Choose your supply

Pick the routine that matches your goal. The 3 bottle bundle is designed for a complete 90 day trial window with enough continuity to judge how you feel.

Best first choice: choose 3 bottles if you want the full experience window, free shipping, and the strongest starter value without overcommitting.
New to KSM-66®? Start with 3 bottles for routine consistency.
Daily use made simple 2 capsules per day, with meals or your evening routine.
Optibio Ashwagandha KSM-66 bottles
90 capsules per bottle
45 days per bottle
One-time purchase
Subscribe & Save 15%
$99.99 $119.97 You save $19.98 (17%)

Ships free on 3+ bottles. Covered by the 90 day money back guarantee.

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90 Day Money Back Guarantee
Third party testedPurity + potency
Free shippingOn 3+ bottles
Easy routine2 capsules daily
Research standard

Clinically studied. Backed by research.

Optibio uses KSM-66®, a root only ashwagandha extract studied across stress, sleep, focus, and overall wellbeing, then pairs it with a full 600 mg daily serving.

50+
Human clinical
studies
75+
Published
research papers
10+
Years of
research
Root only extract standardized to 5% withanolides for consistency.
Made with a patented, solvent free extraction process.
Explore the science

Optibio vs. Generic Ashwagandha

The difference is not just the ingredient name. It is the extract, dose, testing, and manufacturing standard behind every bottle.

600 mgFull daily serving
5%Withanolides
Root onlyKSM-66® extract
FeatureOptibio KSM-66®Generic Ashwagandha
Clinical Evidence50+ human studiesRarely studied
Extract SourceRoot onlyOften root + leaf
Active Standard5% withanolidesTypically 1 to 2%
Extraction MethodPatented, solvent freeOften chemical based
Quality TestingThird party testedUsually not tested
ManufacturingUSA, GMP certifiedVaries

Two capsules. Once a day. That's it.

Take with water after breakfast or dinner.

2 Capsules
Once Daily
With Water

The Optibio Standard

Premium ingredients. Rigorous testing. Nothing less.

Learn More

Premium Ingredients

Sourced with care from trusted partners.

Third Party Tested

Every batch tested for purity and potency.

GMP Certified

Manufactured in cGMP facilities.

No Fillers

No artificial colors, flavors, or additives.

Sustainable

Ethical sourcing you can trust.

Questions before you start?

KSM-66® is the most clinically studied, full-spectrum ashwagandha root extract on the market, made using a patented, solvent free process.

Yes. KSM-66® at 600mg/day is well tolerated in clinical trials. Taking it with food resolves any mild sensitivity. Consult your doctor if on medication.

Optibio uses root-only KSM-66® at the full 600mg clinical dose, standardized to 5% withanolides. Most store brands use 200 to 300mg of generic powder.

Most people notice calmer days and better sleep within 2 to 4 weeks. Full results at 6 to 8 weeks. That's why we give you 90 days.

Full refund. 90 days. No questions. Email us and we refund the entire order. We take on the risk so you don't have to.

Yes. 90 day money back guarantee, no questions asked. Every order is covered.

Your 90 day routine starts here.

600 mg of KSM-66® root extract. Third party tested. Free shipping on 3+ bottles. Backed by a full 90 day money back guarantee.

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90 Day
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$75+
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