Calm that actually shows up.
One active ingredient, clearly labeled. KSM-66® ashwagandha, 600mg, studied to support a calmer, steadier baseline. Results vary.
Choose how you start
KSM-66® Ashwagandha 600mg, 90 Capsules
Premium Root Extract Capsules
Support calm, sleep, focus, recovery, and your body's natural stress response with KSM-66® ashwagandha root extract, root only at a full 600 mg serving.*
Key Benefits
- Supports stress resilience and calm*
- Supports sleep and recovery*
- Supports focus and clarity*
- Supports the body's natural stress response*
Per serving
Capsules
Day supply
Root extract
Why OptiBio? +
Benefits +
How to Use +
Ingredients +
Supplement Facts +

Science & Clinical Ingredient +
FAQs +
One active ingredient, clearly labeled
No kitchen sink blends
Just KSM-66® ashwagandha at 600mg, the dose actually studied.
Pop it, done
Two small capsules a day. No powders, no horse pills, no shelf of 12 bottles.
Calm, not knocked out
Studied to support a steadier, calmer baseline through your day. Results vary.
Tested, then shown to you
Every batch is third party tested for identity, potency, heavy metals, and microbes. Made in a GMP certified US facility.
Why one active ingredient wins
| Optibio | Typical ashwagandha | |
|---|---|---|
| Ingredients | One: KSM-66® root only | Proprietary blends |
| Dose | 600mg, the studied dose | Often underdosed |
| Standardized | 5% withanolides | Often not |
| Testing | Third party tested, every batch | Rarely public |
| Additives | No dyes, no added sugar | Dyes, sweeteners common |
Any last questions?
How fast will I feel it?+
Ashwagandha builds up over time. It works gradually with consistent daily use. Results vary.
Will it make me sleepy or foggy?+
It is not a sedative. KSM-66® is studied to support a calmer, steadier baseline, not to knock you out. Most people take it and go about their day. Results vary.
What is actually in it?+
KSM-66® is a root only ashwagandha extract standardized to 5% withanolides. We keep our claims modest: with consistent daily use it supports a calmer, steadier baseline over weeks. Results vary.
Is it safe to take every day?+
Ashwagandha is made for a daily habit. If you are pregnant, nursing, on medication, or have a thyroid condition, talk to your doctor first.
What is your guarantee?+
90 days, money back. If it is not for you, we refund you, no drama.
Your free calm plan + 50% off.
Tell us where to send your goal matched routine and 50% off your first bottle. No code needed, it applies automatically when you subscribe.
Calmer days start here.
The full 600 mg dose of KSM-66® Ashwagandha. Subscribe and your first bottle is 50% off. Skip or cancel anytime.
Ashwagandha for stress, answered.
Does ashwagandha actually help with stress?
How long until I feel less stressed?
How much ashwagandha should I take for stress?
Keep learning
Evidence-based guides on KSM-66® ashwagandha. Educational information, not medical advice.
- Is it safe to take ashwagandha every day? →
- How long does ashwagandha take to work? →
- The research behind KSM-66® →
- How to read ashwagandha dosage →