Best Powder Iodine Supplements of 2026

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 23, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Powder iodine supplements are a popular means of ensuring adequate iodine intake for individuals who may not be consuming enough of this essential nutrient through their diet. Iodine is crucial for thyroid function and helps to regulate metabolism. The powder form allows for easy mixing into drinks or meals, making it convenient for those who prefer not to take pills. However, it is important to follow recommended dosage guidelines, as too much iodine can lead to negative health effects. Powder iodine supplements are widely available at health food stores and online retailers.

At a Glance: Our Top Picks

J.CROW'S Lugol's Iodine Solution 2% Cover #TOP 1
J.CROW'S Lugol's Iodine Solution 2%
ftb score rating icon 9.8
Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support Cover #TOP 2
Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support
ftb score rating icon 9.7
MaryRuth's Iodine Liquid Drops Cover #TOP 3
MaryRuth's Iodine Liquid Drops
ftb score rating icon 9.5

Top 10 Powder Iodine Supplements

J.CROW'S Lugol's Iodine Solution 2%

J.CrowCo.1231
2 Fl Oz (Pack of 1)
J.CROW'S Lugol's Iodine Solution 2% Cover
J.CROW'S® Lugol's Solution of Iodine 2% 2 oz (1 Bottle) – Premium Iodine & Potassium Iodide Liquid, Gluten &, Alcohol-Free Natural Brine Extract, No Expiration

The J.CROW'S Lugol's Iodine offers a long shelf life and never expires, so you don't have to worry about it losing effectiveness over time. It stays fresh when stored at room temperature, away from sunlight, making it easy to keep on hand. This premium iodine solution comes from ancient natural brine deposits in the Western USA, providing a unique and high-quality source of iodine and potassium iodide. Plus, it's all-natural and pure, free from shellfish, gluten, and alcohol, with no added preservatives or chemicals. The dropper bottle ensures you can measure the right amount easily, making it convenient for daily use or adding to water.

What We Like
Visible results for skin issues
Supports thyroid health
Purer formula, minimal additives
Improved energy and well-being
Multiple usage methods

Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support

2 Fl Oz (Pack of 1)
Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support Cover
Organic Lugol's Iodine, Iodine and Potassium Iodide 2% Solution 3000 mcg - Liquid Supplement Drops for Thyroid Support for Women & Men, Metabolism Health, Detox Boost - Non-GMO, 395 Servings (2 Oz)

The Organic Lugol's Iodine 2% Solution is a liquid supplement drop that helps reduce thyroid vascularity, assists in maintaining consistent metabolism and energy levels, and improves cognitive performance. It is made of the highest quality ingredients, non-GMO, gluten-free, soy-free, dairy-free, vegan-friendly, and free of any artificial flavors and synthetic dyes. This supplement will help you maintain healthy hormone levels and support a healthy endocrine system. Plus, the Love It or Return It Guarantee ensures that you can try it risk-free.

What We Like
Thyroid support
High potency dosage
Long-lasting supply
Easy liquid dosing
Organic and non-GMO

MaryRuth's Iodine Liquid Drops

0856645008167
1 Fl Oz (Pack of 1)
MaryRuth's Iodine Liquid Drops Cover
MaryRuth Organics Iodine Liquid Drops | Potassium Iodide | 1 Year Supply | 450 Servings | Thyroid Health | USDA Organic| Vegan | Non-GMO | Gluten Free | 1 Fl Oz

MaryRuth's Iodine Liquid Drops is a USDA organic, vegan, and easy-to-take Iodine supplement that comes in liquid drops. The liquid drops are an excellent alternative to hard-to-swallow pills or capsules. The suggested serving contains more than the recommended daily value for adults, and the bottle comes with 450 servings. Iodine is essential for thyroid health, which regulates hormone production, plays an important role in metabolism, stimulates the immune system, and moderates the central nervous system. It is especially important for pregnant and nursing women and those on a vegan or vegetarian diet who are at risk of iodine deficiency.

What We Like
Improved energy and metabolism
No taste or odor
Organic and non-GMO
Gluten-free and easy to take

Pure Encapsulations Iodine Supplement 120 Capsules

Pure Encapsulations Iodine Supplement 120 Capsules Cover
Pure Encapsulations Iodine - Supplement to Support The Thyroid & Help Maintain Healthy Cellular Metabolism - with Premium Potassium Iodide - 120 Capsules

Pure Encapsulations Iodine supports your thyroid health by providing a pure iodine formula that helps maintain healthy cellular metabolism. This supplement aids your body in producing essential thyroid hormones, promoting balanced hormone levels for overall well-being. It also supports energy production in your cells, helping tissues and organs function efficiently. Made with high-quality ingredients from trusted sources, this product is carefully tested to ensure purity and potency. Plus, it is free from common allergens, artificial additives, and GMOs, making it a clean choice for those looking to support their thyroid naturally.

What We Like
High bioavailability
Easy absorption
Effective for thyroid support
Recommended by medical professionals
Positive lab result changes

Life Extension Sea-Iodine Supplement

01740
Off White
Life Extension Sea-Iodine Supplement Cover
Life Extension Sea-Iodine™, kelp and bladderwrack-derived Iodine, Supports Healthy Levels of This Essential Nutrient for Thyroid Health and Beyond, Non-GMO, Gluten-Free, Vegetarian, 60 Capsules

Life Extension Sea-Iodine Supplement is a thyroid health-promoting trace element essential for good health. It is a blend of organic marine algae that provides 1000 mcg of iodine without increasing salt intake. A healthy thyroid gland helps regulate metabolism and maintain healthy hormone levels. The product is non-GMO, gluten-free, and made in the USA with the finest raw ingredients. Life Extension Sea-Iodine Supplement is designed to support your healthy lifestyle.

What We Like
Improved energy and well-being
Easy dose adjustment
Supports healthy thyroid function
No adverse reactions for sensitive users

Global Healing Detoxadine Organic Nascent Iodine Drops

KM-NU67-KZK0
1 Fl Oz (Pack of 1)
Global Healing Detoxadine Organic Nascent Iodine Drops Cover
Global Healing Center - Detoxadine - Organic Nascent Liquid Iodine Supplement Drops for Thyroid Support, Detox Cleanse, and Metabolism - Non-GMO, Vegan, 200 Servings Iodine Drops (1 Oz)

Global Healing Detoxadine is a non-GMO, vegan-friendly iodine supplement designed to provide thyroid support, consistent metabolism and energy, normal focus and sleep. The highly absorbable liquid formula is loaded with a gentle flavor of 650mcg of iodine and is set in a solution of certified organic vegetable glycerin. The supplement is manufactured in a state-of-the-art cGMP certified facility in the USA.

What We Like
Organic certified purity
Superior bioavailability
Flexible liquid dosing
Detoxification support
High therapeutic potency

Organic Iodine Supplement from Sea Vegetable Complex

TH_IO_Cap_250MCG
250 mcg
Organic Iodine Supplement from Sea Vegetable Complex Cover
Organic Iodine Supplement from Sea Vegetable Complex, Whole Food & Raw Form - Iodine Plus Trace Mineral Complex – Contains Purest Icelandic Sea Kelp, Irish Moss & Bladderwrack (250 mcg)

This iodine supplement is derived from the purest Icelandic seaweed and delivered in a whole food and raw form. The synergetic sea vegetable complex combines organic kelp, Irish moss, and bladderwrack, packed with minerals, vitamins, amino acids, and polysaccharides, which work together with iodine to provide a broad range of health benefits. Its essential mineral helps regulate thyroid function, metabolism, hormone regulation, immune response, and the central nervous system, preventing problems such as extreme fatigue, weight gain, and brittle hair, skin, and nails.

What We Like
Thyroid regulation support
Painful cyst reduction
Consistent product quality
Natural whole food ingredients
Improved hair, nails, skin
#TOP 8

Carlyle 2% Iodine Solution

CL40053
2 Fl Oz (Pack of 1)
Carlyle 2% Iodine Solution Cover
Carlyle Lugols Iodine 2 Percent 2 fl oz | Potassium Iodide and Iodine Solution 2% Liquid Drops

Carlyle Iodine Drops offer a convenient way to incorporate iodine into your daily routine. Iodine is an essential trace mineral that supports various bodily functions. This solution contains 2% iodine and 4% potassium iodide, mixed with distilled water, making it easy to take. With Carlyle's commitment to wellness, you can trust that you are using high-quality supplements. Each bottle is laboratory tested in the USA, ensuring you receive a product that meets stringent quality standards. Enjoy the peace of mind that comes with using trusted ingredients in your health journey.

What We Like
Easy-to-use dropper
High-quality formulation
Improved energy and clarity
Long-lasting bottle
No unnecessary additives

Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle

CL1775
Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle Cover
Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets | Non-GMO, Gluten Free | Traditional Herb Supplement

Carlyle Sea Kelp Iodine is a traditional herb supplement that delivers 225mcg of iodine per tablet from green seaweed, providing 150% of your daily value to support your overall wellness. The product is non-GMO, gluten-free, and free from artificial flavor, sweetener, and preservatives. Carlyle, a trusted manufacturer of premium supplements, ensures superior quality and guarantees 100% satisfaction.

What We Like
Natural kelp iodine source
Supports hair and energy
Easy to swallow tablets
Noticeable results within days
Large bottle, good quantity

Dr. Berg Sea Kelp Iodine Supplement

FETEGT1247
Without Red Algae
Dr. Berg Sea Kelp Iodine Supplement Cover
Dr. Berg Sea Kelp Enhanced Iodine - 200 mcg of Premium Iodine - Seaweed Blend Includes Klamath Blue-Green Algae & Sea Kelp - 90 Capsules

Dr. Berg Sea Kelp Iodine offers a daily dose of 200 mcg of high-quality iodine, essential for supporting your thyroid health. This supplement blends sea kelp and algae sourced from Iceland’s pristine waters, ensuring you receive premium ingredients. Manufactured in GMP-certified facilities in the U.S., you can trust its cleanliness and quality. Dr. Berg’s extensive research into natural health solutions makes this product unique, providing blends that you won’t find elsewhere. With a 30-day satisfaction guarantee, you can try it risk-free and see the benefits for yourself.

What We Like
Effective for menstrual issues
Helps with iodine deficiency
Supports thyroid health
Promotes natural healing
Positive weight loss results
Buying Guide Image
Editor's Notes

During our powder iodine supplement research, we found 24 powder iodine supplement products and shortlisted 10 quality products. We collected and analyzed 236,455 customer reviews through our big data system to write the powder iodine supplements list. We found that most customers choose powder iodine supplements with an average price of $14.54.

The powder iodine supplements are available for purchase. We have researched hundreds of brands and picked the top brands of powder iodine supplements, including J. CROW'S, Earth Harmony Naturals, MaryRuth Organics, Pure Encapsulations, Life Extension. The seller of top 1 product has received honest feedback from 1,256 consumers with an average rating of 4.8.

Written by
Elisa Drew Avatar

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.