Lugol's Solution 20% Iodine Drops — 10x the Iodine of Our 2% Formula

20% Lugol's Solution is the highest-concentration formula in the Lugols Originals lineup: molecular iodine (I₂) and potassium iodide (KI) in purified water, with nothing else added. It is not Nascent Iodine and not a general liquid iodine blend. At 20%, each drop delivers ten times the iodine of our 2% formula, four times the iodine of our 5% formula, and one-third more per drop than our 15% formula. There is no higher concentration available from Lugols Originals. This formula is for experienced users who have worked through the concentration ladder and are sourcing the maximum per-drop yield the lineup offers.

Why Lugol's Solution?

Lugol's Solution is a two-ingredient liquid iodine source — molecular iodine and potassium iodide in purified water — with no binders, capsule fillers, or synthetic additives. Diets low in iodized salt, seafood, or dairy may contain limited iodine. At 20%, the formula delivers the highest iodine concentration per drop available in a standard 2oz dropper bottle, requiring the fewest drops per serving of any formula in the lineup. Every bottle is manufactured in the U.S.A. by Lugols Originals using high-purity ingredients, in a facility dedicated to iodine production.

What makes the 20% strength distinct:

✔ Concentration: 20% — the highest in the Lugols Originals lineup; 10x the iodine per drop vs. our 2% formula; 4x vs. our 5%
✔ Formula: Molecular iodine (I₂) + potassium iodide (KI) in purified water — two ingredients, nothing else
✔ Serving: The fewest drops per serving of any formula in our lineup
✔ Supply: One 2oz glass dropper bottle = approximately 30-day supply at standard serving
✔ Packaging: Amber glass dropper bottle — no plastic contact with the solution, preserves solution integrity over time
✔ Formulated without alcohol for a milder taste
✔ Origin: Made in the U.S.A. by one of the world’s largest dedicated iodine manufacturers

Who This Is For

Experienced Lugol’s users at the top of the concentration ladder who have established a routine at lower strengths and are sourcing the maximum per-drop yield available
Functional health followers directed to 20% specifically who are comparison-shopping on purity, ingredient sourcing, and concentration accuracy
Users who require the absolute minimum drops per serving and have determined that even 15% requires more drops than their routine calls for
Bulk and long-term storage buyers who want the highest iodine concentration per bottle available in the Lugols Originals 2oz format
Multi-pack buyers purchasing in quantity who want the maximum-concentration option across the lineup

Not yet at 20%? See our 15% Lugol’s Solution as the next step down, or browse the full Lugol’s Solution collection to find the right concentration for your routine.

How to Use

Add the recommended number of drops to a glass of water, juice, or another beverage. Use the included glass dropper for consistent, precise measurement. At 20%, each drop is the most concentrated in the lineup — begin with fewer drops than you used at any lower concentration and adjust with care. Consult a qualified healthcare provider before use if you are pregnant, nursing, taking prescription medications, or have a known sensitivity to iodine.

Frequently Asked Questions

How does 20% Lugol’s Solution compare to 15%?

The 20% formula delivers one-third more iodine per drop than our 15% formula, and ten times the iodine per drop compared to our 2% formula. The ingredient list is identical across all concentrations — molecular iodine (I₂), potassium iodide (KI), purified water. If stepping up from 15%, reduce your drop count by approximately 25% to start at a comparable serving.

Is 20% Lugol’s Solution appropriate for new users?

No. 20% is the highest-concentration formula in our lineup and is intended only for experienced users who are already familiar with liquid iodine supplementation, drop-based dosing, and their own established routine at lower concentrations. If you are new to Lugol’s Solution, start with our 2% formula and work up gradually.

Is this the strongest Lugol’s iodine you offer?

Yes. 20% is the highest concentration available from Lugols Originals in a standard 2oz dropper bottle. It is the terminal product in our Lugol’s Solution concentration lineup. For a lower concentration with more granular drop control, see our 15% formula.

Is this product shelf-stable for long-term storage?

Lugol’s Solution is chemically stable when stored in a cool, dark location away from direct light and heat. The amber glass dropper bottle is chosen specifically to preserve solution integrity over time.

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.

100% No-Risk Money Back Guarantee

Lugols Originals has manufactured over 100 iodine products and stands behind every one. If you are not completely satisfied for any reason, contact us for a full refund — no questions asked. Add to Cart and try it risk-free.

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Lugol's Solution 20% Iodine Drops | Maximum-Strength Formula | Lugols Originals