We built the bottle we couldn't find.

Optibio started with a simple frustration: wanting calm, and not being able to trust what was in the bottle. So we made one we could.

✦ One ingredient · Third party tested
A note fromThe Founder
Optibio bottle beside a morning coffee in soft window light
"Trust shouldn't require guesswork."
The idea behind Optibio

For two years I woke at 3 a.m. with my mind already racing, and the bottle on my nightstand couldn't tell me why it should help.

KSM-66 Ashwagandha roots on a white plate

It started on a label I couldn't read.

I tried nearly everything on the shelf. Most were a "proprietary blend," a long list of names and one number that told me nothing. I had no idea how much ashwagandha I was actually taking, or whether it came from the part of the plant that mattered.

A product asking for my trust, every single morning, while hiding what was inside it.

Optibio KSM-66 Ashwagandha bottle with roots and capsules

So I read the research instead.

I read every label I could find. Everything kept pointing to one extract: KSM-66®, made from the root, standardized, at a real, measurable dose.

The science was clear. The products in front of me weren't.

Calm should be easier to trust.
The principle we built on

We made the one we wanted.

Optibio is the bottle I wish I'd found that first night. One full 600 mg dose of KSM-66®. The root only, where the active compounds live. Tested by an independent lab, every batch. Nothing hidden, nothing to decode.

We still use what we make. That's the only standard that ever felt honest.

Three promises, plainly kept.

See the full science →
I

One honest dose

600 mg of KSM-66® per serving, the dose used in human research. No dusting, no rounding down to save a cent.

II

Only the root

Sourced from the ashwagandha root alone, where the active withanolides actually live. No leaves, no fillers, no shortcuts.

III

Proof you can read

Every batch is third party tested for purity and potency. What's on the label is exactly what's in the bottle.

A calmer routine starts with a bottle you can trust.

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Start with Optibio

Try the bottle we built

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View Supplement Facts

Third Party
Tested

90 Vegan
Capsules

45 Day
Supply

KSM-66®
Root Only
4.75 out of 5 · 148 verified reviews

KSM-66® Ashwagandha 600mg, 90 Capsules, Optibio

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.

Third Party Lab Tested, every batch verified for purity & potency

Key Benefits

  • Supports stress resilience and calm*
  • Supports sleep and recovery*
  • Supports focus and clarity*
  • Supports the body's natural stress response*
600mg

Per serving

90

Capsules

45

Day supply

KSM-66®

Root extract

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Why OptiBio? +
Single ingredient, full 600mg clinical serving of KSM-66® root extract, third party tested for purity and potency, with a 90 day money back guarantee.
Benefits +
Supports stress resilience and calm, healthy sleep, focus and clarity, and the body's natural stress response.*
How to Use +
Take 2 capsules daily with food, or as directed by your healthcare professional. Give it 4 to 6 weeks of consistent use.
Ingredients +
KSM-66® Ashwagandha root extract 600mg (standardized to 5% withanolides). Vegan capsule. Free of gluten, soy, and dairy.
Supplement Facts +
Supplement facts panel
Science & Clinical Ingredient +
KSM-66® is the branded ashwagandha root extract studied in numerous published human clinical studies. See the science.
FAQs +
Common questions about dosing, timing, and what to expect. Read the FAQ.