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Life Extension

Sea-Iodine 1000 mcg

1 Capsule · 150 servings

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What it does

A combination of 3 label ingredients.

organic Bladderwrack extract

Mixed formsGrade —

Supports thyroid hormone production, which regulates normal metabolism and growth.

Kelp

kelpStandard

Kelp provides iodine needed for thyroid hormones, but its iodine content varies; excess can cause thyroid problems rather than added benefit.

Hormones
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Ingredients (5)

IngredientDoseTarget/referenceForm

certified organic Kelp extract

Amount not found

organic Bladderwrack extract

Amount not found

Potassium Iodide

Amount not found

Sea-Iodine Complex Blend

Doses not disclosed by manufacturer

Other ingredients

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Lab testing

How to take it

With or without food

On the label

Take one (1) capsule daily, or as recommended by a healthcare practitioner.

Price check

$16.47

$0.11 / serving

$10$20

Near the median of 38 iodine supplements

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Nascent Iodine Organic Drops

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Genestra Brands

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Iodine (Potassium Iodide)

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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