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Continue shoppingFull spectrum KSM-66® ashwagandha root extract, 600mg per serving, in easy to swallow vegan capsules.
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Save up to 50%KSM-66® full-spectrum root extract, third-party tested, made in a GMP-certified USA facility.
Take 2 capsules daily with water. Use consistently for at least 30 days.
600mg KSM-66® Ashwagandha root extract (5% withanolides). Vegan · Non-GMO · Gluten-Free.
Every claim on this page links to its source. Open any drawer to see the proof for yourself.
Every batch is tested by an independent, accredited lab for purity, potency, and heavy metals before release.
Results reflect published clinical studies of the KSM-66® ashwagandha extract, the same ingredient used in Optibio.
View science page →Optibio is manufactured in a GMP certified facility in the United States using KSM-66® ashwagandha sourced from certified organic farms.
Try Optibio for a full 90 days. If you are not satisfied for any reason, contact us for a complete refund. No questions asked.
600 mg of KSM-66® ashwagandha root extract per serving, standardized to 5% withanolides. No proprietary blends, no fillers, no added sugar.
See how Optibio's KSM-66® extract compares to generic ashwagandha on the metrics that matter.
When comparing KSM-66® ashwagandha vs regular ashwagandha, three factors matter most: standardization, clinical evidence, and source quality. Generic ashwagandha products often use leaf or aerial parts with inconsistent withanolide content and limited visible clinical evidence. KSM-66® is the world’s most clinically studied ashwagandha extract, a patented, full spectrum root extract standardized to 5% withanolides, the subject of numerous published human clinical trials at the same 600mg daily dose used in Optibio. Here is how they compare:
| Feature | Generic Ashwagandha | Optibio KSM-66® |
|---|---|---|
| Extract Type | ✗ Varies (often leaf only) | ✓ Full spectrum root extract |
| Withanolide Content | ✗ 1 to 2% (unstandardized) | ✓ 5% withanolides (standardized) |
| Clinical Studies | ✗ Few or none | ✓ Subject of numerous published human clinical trials |
| Quality Testing | ✗ Unknown or self tested | ✓ Third party tested for purity and potency |
| Clinical Dosage | ✗ Often underdosed | ✓ 600mg/day studied dose |
| Extraction Method | ✗ Chemical solvents common | ✓ KSM-66® Ashwagandha Root Extract |
| Bioavailability | ✗ Variable, unmeasured | ✓ KSM-66® Ashwagandha Root Extract standardized to 5% withanolides |
| Source Traceability | ✗ Unknown origin, mixed parts | ✓ KSM-66® sourced from India |
Use Optibio as part of your daily routine. Individual experiences vary.
Start taking it daily, at the same time each day, so it becomes a habit. Individual experiences vary.
Keep taking it daily. Consistency makes it easy to stick with.
Consistency matters most. A steady daily routine is the simplest way to use it.
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.
Answer a few questions to find the right routine for your goals.
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Optibio uses KSM-66® sourced from India and is Manufactured in the USA with globally sourced ingredients. Every batch is third party tested for purity and potency.
View Sample Proof →KSM-66® ashwagandha is most extensively studied for stress and cortisol regulation, sleep quality, and physical endurance. In peer reviewed clinical trials at 600mg/day, the same dose Optibio uses, KSM-66® has been shown to reduce serum cortisol by 27.9% (Chandrasekhar et al., 2012), significantly improve Perceived Stress Scale scores (Salve et al., 2019), significantly improve sleep quality (Langade et al., 2019), and increase VO2max by 13.6% over 12 weeks in athletic adults (Choudhary et al., 2015). It's also been studied for cognitive performance, including memory and focus. Because it's an adaptogen, it works gradually rather than as a stimulant. Most people notice meaningful change within 2 to 4 weeks of daily use.
These results reflect clinical studies of the KSM-66® ashwagandha ingredient used in Optibio, not the finished Optibio product. Individual results may vary.
Use Optibio consistently as part of a daily wellness routine and follow product directions. Individual experiences vary.
KSM-66® is an ashwagandha root extract standardized to 5% withanolides. KSM-66® has been the subject of numerous published human clinical trials.
If you are pregnant, nursing, taking medication, have a medical condition, or have questions about whether ashwagandha is right for you, consult your healthcare provider before starting any new supplement.
If you take prescription medications or other supplements, consult your healthcare provider before adding any new supplement to your routine.
We offer a 90 day money back guarantee. If Optibio is not the right fit for your routine, contact us for support under the guarantee.
Yes. Ashwagandha is typically taken daily as part of a consistent routine. KSM-66® is an adaptogen, which means its effects build gradually with regular use. Most clinical studies used daily dosing over 8 to 12 weeks. As with any supplement, consult your healthcare provider if you have questions about long term use.
Either works. It depends on your goals. Some people prefer morning dosing for stress resilience throughout the day, while others take it in the evening to support relaxation and sleep quality. You can also split your two capsules: one in the morning and one in the evening. There is no wrong time.
We recommend taking Optibio with food. While ashwagandha can be taken on an empty stomach, pairing it with a meal supports absorption and is gentler on digestion. A light breakfast or snack is sufficient.
Yes. There is no known adverse interaction between ashwagandha and caffeine. Many people take their morning Optibio capsule alongside coffee. Ashwagandha works through a different pathway (the HPA axis and stress response system) than caffeine, so they complement rather than conflict.
Optibio delivers 600mg of KSM-66® ashwagandha root extract per daily serving (2 capsules), the same dose used in published clinical trials. This is standardized to 5% withanolides, the key bioactive compounds. Do not exceed the recommended dose unless directed by your healthcare provider.
Take 2 capsules daily, preferably with food. You can take both capsules together or split them (one in the morning, one in the evening). For sleep support, some customers prefer taking their dose in the evening.
Dietary supplements are regulated differently from prescription drugs. Optibio keeps quality language limited to approved claims: Manufactured in the USA with globally sourced ingredients, Manufactured in a GMP certified facility, and Third party tested for purity and potency.
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You're charged when your order is placed, and then again before each scheduled delivery, every 45 days. You'll always receive an email reminder before your next order ships, giving you time to make changes or skip if needed.
Ashwagandha is sold in capsules, powder, and gummies, but the format affects both dose accuracy and the active compounds you actually receive. KSM-66® ashwagandha capsules like Optibio deliver the exact 600mg clinical dose used in peer reviewed studies, with no added sugar, fillers, or flavor masking. KSM-66® ashwagandha powder can be effective but requires careful measuring and has a strong, bitter taste that's difficult to mask in food. KSM-66® ashwagandha gummies typically contain 1 to 3g of added sugar per serving and are often underdosed at 100 to 250mg per gummy, well below the clinical range. For consistent, accurate dosing without added sugars, capsules are the cleanest delivery format for KSM-66®.
KSM-66® Ashwagandha Root Extract with third party tested quality standards and a 90 day guarantee.
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