Life Extension Sea-Iodine

I've been on this medication for over a year now, always under a physician's supervision and with appropriate cofactors. After an ultrasound, the cysts in my chest reduced, my hair is no longer splitting, and my libido has taken off. However, caution is required at higher dosages.

Pelvic Pain details

I resolved issues with muscle pain in my child's limbs after giving this iodine. Initially suspected magnesium deficiency, but after a week of iodine, my child stopped complaining about pain. Very pleased with the results for my 5-year-old.

Cancer details

Iodine treatment aids recurrent cancer

Possibly Effective

Based on 16 Researches

Lazrek A, Finocchi Ghersi S, Petre A, Houabes S, Serre AA, et al. Case report of the first use of a hydrogel rectal spacer for prostate cancer reirradiation via LDR brachytherapy: applications and technical notes. Front Oncol. 2025;15:1494304. doi:10.3389/fonc.2025.1494304

We observed a compelling case where a biodegradable hydrogel spacer was used alongside iodine-125 brachytherapy to treat recurrent prostate cancer. This innovative approach involved placing the spacer to create space between the prostate and the rectum, which significantly reduced radiation exposure to healthy tissues during the treatment.

Following initial external beam radiotherapy in 2015, the patient showed signs of local recurrence by 2022. To address this, the treatment plan included not just the iodine-125 brachytherapy but also the hydrogel spacer, which was placed in January 2024 just before the radiation treatment. Six months later, we noted a remarkable drop in the patient’s prostate-specific antigen (PSA) levels, indicating a positive response to the treatment.

This case showcases the potential benefits of using iodine treatment in combination with advanced techniques like hydrogel spacers. The results suggest that this method not only improves the effectiveness of therapy but also ensures higher safety by protecting adjacent tissues from unnecessary radiation damage. Overall, we find this integration of technology highly beneficial for managing recurrent cancer challenges.

Symptom improvement

Most Useful Review

51 people found this helpful

After experiencing neck swelling and other discomforts for four months, I turned to iodine supplements. Within two days, my symptoms improved significantly, and my swelling has almost completely subsided.

Abscess details

47 people found this helpful

After living with hypothyroidism and thyroid cysts for over a decade, I followed my endocrinologist's advice to start taking iodine. Initially, there was no result until I discovered this remarkable product! I take 1-2 capsules daily, and the outcome is excellent—stronger nails, reduced hair fall, and significantly shrinkage of thyroid cysts. I highly recommend this, but consult specialists first.

Cardiovascular Disease details

Eases anxiety quickly

2 people found this helpful

I resolved my iodine deficiency through daily use of these supplements. They worked well for me, alleviating symptoms like anxiety and tenderness. I noticed a significant decrease in anxiety within hours of taking a pill, and after a month, I felt completely normal. Unlike other higher dosage iodine supplements, this dosage is gentle and effective without causing drowsiness.

Chest Pain details

9 people found this helpful

I like the effect. At this dosage, only as prescribed by a doctor. The painful sensations in my chest before the cycle have disappeared, and my TSH returned to normal. Recommendations))

Chronic Cough details

Prevents hypothyroidism

4 people found this helpful

Iodine is essential for synthesising thyroid hormones, especially when planning for pregnancy. A deficiency may result in disrupted hormone synthesis, leading to symptoms like apathy, chronic fatigue, and various health issues. It's crucial to address iodine intake promptly to prevent serious complications during pregnancy. I highly encourage anyone needing iodine to use a reliable supplement that is simple to take without side effects.

Ear Infection details

Relieved fatigue symptoms

I’d like to share my experience with a dietary supplement I’ve been taking regularly. The product has received positive reviews for its composition. Iodine is vital, and deficiency can lead to chronic fatigue, immune weakness, and other health issues; it seems many people suffer from iodine deficiency. This particular iodine is derived from a mixture of Sea-Iodine, and I've noticed a significant improvement in my general health. Waking up early has become a pleasure, and I feel much less overwhelmed during the day. I recommend a course of iodine for anyone seeking to maintain their health, mood, and immunity, especially in trying times!

Headache details

Less frequent headaches

14 people found this helpful

Budget-friendly with good results. I noticed a marked improvement in my health; my mind felt clearer, without fogginess or drowsiness during the day. I wake up feeling refreshed and energetic. Without iodine, I tend to feel tired in the mornings and struggle to motivate myself. My headaches have become less frequent; without iodine, I would have migraines. I am very satisfied and highly recommend this supplement.

Sleep Apnea details

430 people found this helpful

The tests on my thyroid gland are normal, but I often feel like I have hypothyroidism; I wake up feeling tired despite getting enough sleep. However, after a week of taking the supplement, I noticed a remarkable improvement. The brain fog disappeared, and I now wake up feeling energised every morning. It's a wonderful transformation.

Cold details

Resolves deficiency symptoms

9 people found this helpful

If you're experiencing deficiency symptoms, take a pill daily until the bottle is empty. I realised I had an iodine deficiency around 50, likely due to avoiding table salt. I experienced hair loss, bloating, and a lower core temperature, often feeling cold. After one bottle, my symptoms resolved, and I'm delighted with the results. Just be careful not to overdose on iodine.

Back Pain details

74 people found this helpful

I follow my endocrinologist's advice to take this iodine. It has been effective; I feel good without any side effects. My health assessments have returned to normal, and I can easily swallow the small capsules. I recommend this product for anyone facing thyroid issues.

Blood Clot details

13 people found this helpful

It helped improve my thyroid. My blood tests were showing low thyroid levels, and they wanted me to start medication. However, I preferred a natural alternative. I've been taking this once daily for about two months, and my last blood test showed that it's no longer an issue, so I don't need medication now! I highly recommend trying it!

Celiac details

Supports overall wellbeing

Iodine is a vital mineral for the thyroid gland, which regulates metabolism and energy. Life Extension Sea-Iodine offers a natural source of iodine from sea vegetables like kelp and bladderwrack. Each vegetarian capsule contains 1,000 mcg of iodine, supporting thyroid health and overall wellbeing. This supplement is free from allergens like gluten, soy, and dairy, making it suitable for many. Users have noted improved thyroid function, increased energy, and enhanced cognitive abilities. The convenience of taking a capsule makes it user-friendly, as it doesn’t require mixing or measuring. I highly recommend this iodine supplement for anyone seeking quality ingredients to support their health, especially for those deficient in iodine.

Prostate Cancer details

4 people found this helpful

Adding iodine, along with vitamin D3, can significantly improve one's wellbeing. Iodine aids in revitalising the thyroid and combats the negative effects of exposure to radon and other natural radiation. This supplement is particularly beneficial if there is a family history of issues like breast or prostate cancer. I appreciate that LifeExtension has been trusted by health professionals for many years.

Common Cold details

Iodine reduces rhinovirus infections

Moderately Effective

Based on 3 Researches

Gwaltney JM, Moskalski PB, Hendley JO. Interruption of experimental rhinovirus transmission. J Infect Dis. 1980;142:811.

We explored the effectiveness of 2% aqueous iodine in preventing infections caused by rhinoviruses, the culprits behind the common cold. In a controlled setting, volunteers had their fingers treated with iodine before being exposed to the virus. Remarkably, none of the eight participants who received the iodine treatment became infected immediately afterwards. In contrast, all of the seven volunteers treated with a placebo did get infected.

We also noticed that when exposure occurred two hours after iodine application, only one out of ten volunteers fell victim to the virus, whereas six out of ten in the placebo group became ill. The difference was notable, though not quite statistically significant. Additionally, tests showed virus presence in only 11% of hand washes from those who used iodine, compared to 41% from the placebo group, suggesting that iodine may substantially reduce virus contamination on hands.

Overall, these findings indicate that using iodine could be an effective strategy in preventing common cold infections, especially right after treatment. It seems that applying iodine to our hands may serve as a protective measure against rhinovirus, significantly reducing the chances of getting sick.

7.5

Immediate strength

Most Useful Review

5 people found this helpful

This is not my first purchase of this iodine. Combined with selenium, it has shown remarkable effects! Having AIT and hypothyroidism for years, I take these supplements a few times a year and feel improvements almost immediately. I have more energy, am warmer, my skin feels better, and my hair falls out less. However, the dosage is quite high, so for prevention, a smaller dose is advisable for less experienced individuals.

Heart Attack details

Reduced nodules significantly

55 people found this helpful

About a year ago, I had an ultrasound that revealed two nodules on my thyroid. After consulting an endocrinologist, I began taking iodine. I chose this particular brand due to its positive reviews and pure composition. Six months later, a follow-up ultrasound showed considerable shrinkage of the nodules! This dietary supplement is excellent, and I intend to use it regularly. I am grateful to iHerb for such quality supplements. Health to everyone!

Heart Disease details

Fucoidan mitigates chemotherapy heart damage

Questionable

Based on 2 Researches

Zhang J, Sun Z, Lin N, Lu W, Huang X, et al. Fucoidan from Fucus vesiculosus attenuates doxorubicin-induced acute cardiotoxicity by regulating JAK2/STAT3-mediated apoptosis and autophagy. Biomed Pharmacother. 2020;130:110534. doi:10.1016/j.biopha.2020.110534

We examined how fucoidan, a natural compound found in kelp, might help reduce heart damage caused by the chemotherapy drug doxorubicin (DOX). Using Sprague-Dawley rats and heart cells in a lab, we found that DOX causes significant heart damage, but fucoidan has a protective effect. It works by enhancing the process of cell repair and reducing cell death through the JAK2/STAT3 signaling pathway. These promising findings suggest that fucoidan could be a potential therapeutic option to mitigate heart-related side effects of chemotherapy.

Clarified thoughts experienced

Most Useful Review

9 people found this helpful

Best Iodine for Brain Fog helped me tremendously as I have hypothyroidism and struggle with brain fog. This is the only iodine that made a noticeable difference for me; neither kelp nor iodoral provided such clarity. Additionally, it aided my condition with fibrocystic breast disease, as the cysts became smaller.

Hypothyroidism details

Iodine supplementation restores thyroid function

Moderately Effective

Based on 10 Researches

Seetharaman S, Sasidharan Pillai S, Ganta A, Millington K, Quintos JB, et al. Iodine Deficiency Hypothyroidism Among Children in the United States - 21st Century Resurgence?. AACE Clin Case Rep. 2024;10:236. doi:10.1016/j.aace.2024.08.003

We looked into the growing concern of iodine deficiency hypothyroidism among children in the United States. This condition, which can lead to cognitive and physical impairments, was thought to be largely eliminated thanks to universal salt iodization started in the 1920s. However, recent trends suggest that iodine deficiency could be reappearing due to increased use of noniodized salts, lower iodine levels in dairy, and dietary restrictions like veganism or food allergies.

Over an 18-month period, we documented a series of cases where three children were diagnosed with iodine deficiency hypothyroidism despite having no underlying thyroid dysfunction. Their clinical presentations varied significantly—some had large goiters while others showed mild or no goiter at all. The results of their biochemical tests also highlighted a range of thyroid-stimulating hormone elevations.

Importantly, all patients returned to normal thyroid function following iodine supplementation. We propose that measuring spot urine iodine levels alongside elevated serum thyroglobulin could serve as a simpler and effective diagnostic approach, moving away from the more complex 24-hour urinary iodine tests. Our findings shine a light on the necessity of addressing iodine deficiency in today’s dietary landscape.

Immediate energy boost

Most Useful Review

221 people found this helpful

Very effective iodine. After just three days on one capsule, my hair stopped falling out, and I instantly felt more energetic with fewer headaches. I've reordered, as this iodine is far superior to Iodomarin. I’ve also started my mother on it for her subclinical hypothyroidism. It's effective, but the dose is high; for prophylactic use, one capsule weekly may suffice. Organic iodine gets absorbed precisely, preventing overdose.

Premenstrual Syndrome details

1 people found this helpful

I drank this before without tracking it. I decided to repeat the course, and what I noticed is remarkable: I no longer suffer from premenstrual syndrome (PMS), and the discomfort in my chest during the second half of my cycle has disappeared.

Uterine Fibroids details

51 people found this helpful

I reside in Kazakhstan, an area endemic for iodine deficiency. Following my doctor's recommendation, I take these capsules as they are comfortable and have no unpleasant odour. After using two packs, I’ve noted improvements based on my ultrasound, as it’s believed that Uterine Fibroids can develop with iodine deficiency.

Bone Pain details

Cycle regularity restored

2 people found this helpful

Best Iodine I took the iodine from this particular company and the dosage for testing. For 14 years, I suffered from irregularities in my menstrual cycle, with intervals of up to 60 days. For the first time, I have now had two consecutive months where my cycle has been regular. There are no longer any painful symptoms or nausea that once incapacitated me for days. This is truly the ideal iodine. Highly recommended!

Breast Cancer details

Fucoidan's effects on breast cancer

Possibly Effective

Based on 15 Researches

Banafa AM, Roshan S, Liu YY, Chen HJ, Chen MJ, et al. Fucoidan induces G1 phase arrest and apoptosis through caspases-dependent pathway and ROS induction in human breast cancer MCF-7 cells. J Huazhong Univ Sci Technolog Med Sci. 2013;33:717. doi:10.1007/s11596-013-1186-8

We examined the effects of Fucoidan, a component from seaweed, on human breast cancer cells known as MCF-7. Our findings showed that Fucoidan significantly reduced the number of viable cancer cells in a dose-dependent way.

It led to G1 phase cell cycle arrest and increased apoptosis, which is the process of programmed cell death. These changes involved various molecular mechanisms, including the regulation of specific genes and increased production of reactive oxygen species.

Overall, our study suggests that Fucoidan has potential as a treatment for breast cancer through its ability to halt cell growth and promote cancer cell death.

Breast pain relief

Most Useful Review

1 people found this helpful

After taking this with NOW's evening primrose oil, my breast pain disappeared completely. It's as if I never had the pain, and I had forgotten it was ever a symptom.

High Cholesterol details

Kim MB, Lee Y, Bae M, Kang H, Hu S, et al. Sugar kelp (Saccharina latissima) inhibits hepatic inflammation and fibrosis in a mouse model of diet-induced nonalcoholic steatohepatitis. J Nutr Biochem. 2021;97:108799. doi:10.1016/j.jnutbio.2021.108799

Moderately Effective

Based on 2 Researches

Sugar kelp aids liver health

We examined how U.S.-grown sugar kelp, a type of edible brown seaweed, might help combat liver problems associated with obesity in mice. Mice were given a diet high in fats and sugars, with one group also receiving sugar kelp.

Remarkably, those eating sugar kelp showed less weight gain and reduced levels of harmful cholesterol and fats in their liver. They also experienced less liver inflammation and fibrosis compared to those on the higher-fat diet without kelp.

These findings suggest that sugar kelp could be a beneficial addition to diets aimed at reducing health issues related to obesity.

Normalised TSH levels

Most Useful Review

9 people found this helpful

This product worked wonders for my hypothyroidism. My TSH levels normalised, and I now have much more energy. It’s very effective for me!

Brain Tumor details

Fucoidan shows potential bioactivity

Cabral EM, Mondala JRM, Oliveira M, Przyborska J, Fitzpatrick S, et al. Influence of molecular weight fractionation on the antimicrobial and anticancer properties of a fucoidan rich-extract from the macroalgae Fucus vesiculosus. Int J Biol Macromol. 2021;186:994. doi:10.1016/j.ijbiomac.2021.06.182

We explored the antimicrobial and anticancer properties of a fucoidan extract derived from the macroalgae Fucus vesiculosus. This study involved testing various fractions of the extract against bacterial strains and brain glioblastoma cancer cells.

The results showed that the larger fractions (>300 kDa) displayed the most significant cytotoxic effects on the cancer cells over time. While the study confirmed the potential of this extract as an antimicrobial and anticancer agent, further research is necessary to uncover the exact mechanisms behind its effects.

Mental clarity enhanced

Most Useful Review

1 people found this helpful

This product has significantly improved my mental clarity, effectively eliminating brain fog! I mix it with warm water and a teaspoon of salt daily, which has positively impacted my everyday life. Since starting this product, I also feel I have lost weight as it helps regulate cortisol levels. This product, along with Selenium, is essential for anyone with thyroid conditions. Highly recommended!

Chronic Fatigue Syndrome details

Effective for children

118 people found this helpful

Iodine deficiency in children can lead to severe issues such as speech delays and gastrointestinal problems. My child has chronic dysbacteriosis, and this iodine has made a significant difference. The dosage is convenient, and the capsules are small enough for my child to swallow easily.

Food Poisoning details

Normalised thyroid size

In October 2019, my thyroid gland was much smaller than normal, and I was on the verge of hypothyroidism. My TSH levels were slightly above normal, prompting me to incorporate iodine-rich foods. I initially took 150 mcg of iodine, then increased it to 200 mcg with selenium. After intermittent use for a year, my thyroid's size normalised, confirmed by ultrasound in November 2020, and I feel good.

Cold Sores details

Disappeared sore throat

1 people found this helpful

The iodine I’ve ordered at a friend's suggestion has yielded results. She has a thyroid issue and mentioned her sore throat vanished after a month of use. Her endocrinologist noted her improvement and she attributed it to this iodine, though the doctor questioned the dosage. In my case, my doctor confirmed the dosage is normal. This isn’t my first purchase; I keep reordering for myself and friends. Previously, I used another brand which caused constipation, but this product had no side effects.

Adenoiditis details

Benefits for breastfeeding

As a breastfeeding mother, I initially hesitated to take iodine, but after ensuring my dosage was safe, I took one capsule daily without side effects. In fact, I noticed improvements not just in myself but also in my son—his stool improved, and he began articulating syllables more clearly. Normally, I suffer from coughs in spring, yet this time I experienced no sore throats or coughing.

Nausea details