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Optibio is a single ingredient ashwagandha supplement. Each capsule contains 300 mg of KSM-66® Ashwagandha. The full daily dose is 600 mg, taken as two capsules a day (both together, or one in the morning and one in the evening). A bottle of 90 capsules is a 45 day supply.

Most supplement companies grow by adding SKUs. We chose the opposite: make one product and make it the best version of itself. Less inventory means more attention on sourcing, dosing, and testing.

Nothing. It's an opaque vegetable capsule. The contents have a faintly earthy aroma if you open one. Ashwagandha root is bitter and grassy, but the capsule keeps that to itself.

KSM-66® Ashwagandha root extract (300 mg per capsule, standardized to 5% withanolides) and a vegetable HPMC capsule. Nothing else.

KSM-66® is a proprietary, full spectrum ashwagandha extract made by Ixoreal Biomed. It's root only (no leaf), produced through a 14 day green chemistry extraction without alcohol or synthetic solvents, and standardized to 5% withanolides. It's the extract used in the majority of major human clinical trials on ashwagandha.

KSM-66® is a root only ashwagandha extract standardized to 5% withanolides and used in the majority of major human clinical trials on ashwagandha. Generic ashwagandha often uses whole plant or leaf material at lower amounts, frequently 300 mg or less. Optibio uses KSM-66® at the full 600 mg daily serving used in that clinical research.

Read the full KSM-66® vs generic ashwagandha comparison →

Yes to all three. No animal derived ingredients, no gluten, non GMO. Free of soy, dairy, eggs, peanuts, and tree nuts.

None. No magnesium stearate, no silicon dioxide, no titanium dioxide, no synthetic dyes, no maltodextrin.

Two capsules a day. Take them together, or split one with breakfast and one with dinner. Take it with food when you can. Adaptogens are better absorbed alongside a meal.

The serving used in the clinical research is 600 mg of KSM-66® per day, taken as two capsules a day (both together or split morning and evening). Optibio provides exactly that dose. Effects build gradually, so give it at least 30 days of daily use.

Adaptogens work cumulatively. Some people feel a softer baseline in the first week. Most notice meaningful changes between weeks two and four. Give it 30 days minimum before deciding.

Yes. KSM-66® is non stimulating and won't cancel your caffeine. Many people take their morning dose with coffee and report calmer focus, not less energy.

We don't recommend it. 600 mg is the dose used in most of the clinical research. More isn't better. It's just more.

Most orders ship within 24 hours from our New York facility. Standard U.S. shipping takes 3 to 5 business days. Shipping is free on every Subscribe and Save order, and $5.99 flat on one-time orders.

We currently ship to the United States, including Alaska, Hawaii, and Puerto Rico. International shipping is coming in 2026.

Yes. You'll get a tracking email when your order leaves our facility, and another when it's out for delivery. Order status is also available in your account.

Your first order is 50% off, then every delivery is discounted with free shipping included. Deliveries are matched to your supply, about every 45 days. Manage everything from your account, and skip, pause, or cancel anytime.

Anytime. No phone calls, no retention scripts, no "are you sure?" loops. One click in your account and it's done.

Your first order is 50% off at $24.99. After that, each delivery renews at the standard subscriber price of $36.99, with free shipping. That price stays the same for as long as you stay subscribed. If we ever need to change it, we will email you first so you can skip or cancel before your next order.

Try Optibio for ninety days. If you don't feel a meaningful difference in stress, sleep, or focus, email us and we'll refund the full purchase price. No need to ship the bottle back. No retention scripts.

Email support@optibiosupplements.com with your order number. Refunds are processed within 3 business days.

Yes, within 60 days of delivery, for any reason. We cover return shipping.

KSM-66® has been studied across 50+ human trials with strong safety data at our 600 mg daily dose. The most commonly reported effects are mild and short lived, usually drowsiness or stomach upset when taken without food. If you experience anything persistent, stop and check with your clinician.

We don't recommend ashwagandha during pregnancy or while nursing. Please consult your clinician.

Ashwagandha can interact with sedatives, thyroid medication, immunosuppressants, and some blood pressure medications. If you take prescription medication, talk to your prescriber before starting.

Every batch. We test for identity, potency, heavy metals, pesticides, residual solvents, and microbial contaminants. Certificates of analysis are available for every lot. Ask us and we'll send yours.