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    Life Extension Vitamins D and K with Sea-Iodine™

    $18.00

    $0.30 per serving

    • Use code FOURTH to save 15%
    J. Crow's ® Lugol's Solution 2%

    $14.95

    • Use code FOURTH to save 15%
    NOW Sunflower Lecithin Powder

    $20.89

    $0.47 per serving

    • Use code FOURTH to save 15%
    NOW Sunflower Lecithin

    $17.69

    $0.18 per serving

    • Use code FOURTH to save 15%
    Life Extension Sea Iodine

    $6.00

    $0.10 per serving

    • Use code FOURTH to save 15%
    NOW Sunflower Lecithin

    $8.59

    $0.18 per serving

    • Use code FOURTH to save 15%
    Fearn Lecithin Granules

    $16.29

    $0.55 per serving

    • Use code FOURTH to save 15%
    Vitacost Soy Lecithin

    $13.99

    $0.05 per serving

    • Use code FOURTH to save 15%
    • Use code 30VBRANDS to save 30%
    • Professional Supplements
    Thorne Selenium

    $13.00

    $0.22 per serving

    • Use code FOURTH to save 15%
    Life-Flo Liquid Iodine Plus

    $9.69

    $0.03 per serving

    • Use code FOURTH to save 15%
    Vitacost-Synergy Thyroid Support Complex† with L-Tyrosine

    $6.64

    $0.14 per serving

    • Use code FOURTH to save 15%
    Vitacost-Synergy Thyroid Support Complex† with L-Tyrosine

    $19.29

    $0.13 per serving

    • Use code FOURTH to save 15%
    Fearn Liquid Lecithin

    $6.70

    $0.21 per serving

    • Use code FOURTH to save 15%
    Solaray Thyroid Caps

    $18.89

    $0.32 per serving

    • Use code FOURTH to save 15%
    Global Healing Organic Detoxadine

    $29.95

    $0.15 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Pure Encapsulations Iodine (potassium iodide)

    $19.60

    $0.17 per serving

    • Use code FOURTH to save 15%
    Gaia Herbs Stress Support - Thyroid Support

    $49.49

    $0.83 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Pure Encapsulations Thyroid Support Complex

    $63.60

    $1.06 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Emerald Labs Thyroid Health

    $40.46

    $1.35 per serving

    • Use code FOURTH to save 15%
    MaryRuth's Organic Iodine Liquid Drops Unflavored

    $21.95

    $0.05 per serving

    • Use code FOURTH to save 15%
    NOW Thyroid Energy

    $22.59

    $0.26 per serving

    • Use code FOURTH to save 15%
    Natural Factors Liquid Kelp Iodine

    $13.97

    $0.01 per serving

    • Use code FOURTH to save 15%
    NOW Thyroid Energy

    $12.49

    $0.28 per serving

    • Use code FOURTH to save 15%
    Foods Alive Organic Sunflower Lecithin Liquid

    $15.19

    $0.95 per serving

    • Use code FOURTH to save 15%
    Ancient Nutrition Glandulars - Womens Vitality Blend

    $50.96

    $1.70 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Dr. Mercola Iodine from Organic Seaweed

    $18.75

    $0.63 per serving

    • Use code FOURTH to save 15%
    NOW Lecithin

    $7.49

    $0.23 per serving

    • Use code FOURTH to save 15%
    Bluebonnet Nutrition Super Earth Lecithin Granules Natural Soya

    $18.36

    $0.39 per serving

    • Use code FOURTH to save 15%
    MegaFood Thyroid Strength - Thyroid Support for Women

    $44.99

    $1.00 per serving

    • Use code FOURTH to save 15%
    Trace Minerals Research Ionic Iodine Dietary Supplement

    $16.99

    $0.06 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Codeage USDA Organic Iodine Drops - Pure Iodine Liquid - Vegan Thyroid Supplement

    $24.99

    $0.03 per serving

    • Use code FOURTH to save 15%
    • Buy one get one 50% off
    NOW Lecithin

    $26.19

    $0.20 per serving

    • Use code FOURTH to save 15%
    NOW Potassium plus Iodine

    $9.59

    $0.06 per serving

    • Use code FOURTH to save 15%
    NOW Sunflower Liquid Lecithin

    $15.99

    $0.50 per serving

    • Use code FOURTH to save 15%
    Zhou Thyroid Support with Iodine

    $21.39

    $0.72 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Codeage Grass-Fed Beef Kidney - Bovine Glandular Superfood Supplement

    $39.99

    $1.34 per serving

    • Use code FOURTH to save 15%
    • Buy one get one 50% off
    • Professional Supplements
    Thorne Thyrocsin

    $38.00

    $0.64 per serving

    • Use code FOURTH to save 15%
    Life Extension Thyroid Support Complex

    $26.25

    $0.88 per serving

    • Use code FOURTH to save 15%
    Vitanica ThyroFem™ Thyroid Support

    $19.49

    $0.65 per serving

    • Use code FOURTH to save 15%
    NOW Non-GMO Lecithin

    $13.59

    $0.21 per serving

    • Use code FOURTH to save 15%
    Natural Factors Thyroid Health Formula

    $10.59

    $0.36 per serving

    • Use code FOURTH to save 15%
    Terry Naturally Tri-Iodine™

    $52.76

    $0.30 per serving

    • Code FOURTH not valid on this item.
    Terry Naturally Tri-Iodine™

    $22.36

    $0.25 per serving

    • Code FOURTH not valid on this item.
    Terry Naturally Thyroid Care Plus Selenium

    $35.16

    $1.18 per serving

    • Code FOURTH not valid on this item.
    NaturesPlus Egg Yolk Lecithin

    $23.76

    $0.27 per serving

    • Use code FOURTH to save 15%
    Solaray Iodine

    $9.89

    $0.33 per serving

    • Use code FOURTH to save 15%
    • Professional Supplements
    Pure Encapsulations Thyroid Support Complex

    $35.80

    $1.20 per serving

    • Use code FOURTH to save 15%
    ForestLeaf Thyroid Support + Iodine L-Tyrosine & Ashwagandha

    $17.99

    $0.60 per serving

    • Use code FOURTH to save 15%
    Natural Factors WomenSense ThyroSense®

    $19.19

    $0.32 per serving

    • Use code FOURTH to save 15%
    Terry Naturally Thyroid Care™

    $32.76

    $0.55 per serving

    • Code FOURTH not valid on this item.
    • Professional Supplements
    DaVinci Laboratories Micronized DHEA

    $18.00

    $0.20 per serving

    • Use code FOURTH to save 15%
    Terry Naturally Thyroid Care Plus with Selenium

    $20.76

    $0.70 per serving

    • Code FOURTH not valid on this item.
    Terry Naturally Tri-Iodine™

    $30.36

    $0.34 per serving

    • Code FOURTH not valid on this item.
    Bluebonnet Nutrition Targeted Choice® Thyroid Boost

    $34.36

    $0.77 per serving

    • Use code FOURTH to save 15%
    Terry Naturally Tri-Iodine™

    $23.96

    $0.27 per serving

    • Code FOURTH not valid on this item.
    Eidon Ionic Minerals Iodine Liquid Concentrate

    $19.99

    $0.05 per serving

    • Code FOURTH not valid on this item.
    Bucklebury Wildcrafted Irish Sea Moss gummies

    $25.39

    $0.85 per serving

    • Use code FOURTH to save 15%
    • Buy one get one 50% off
    Solaray Thyroid Blend SP-26™

    $11.19

    $0.12 per serving

    • Use code FOURTH to save 15%
    Life-Flo Liquid Iodine Plus Orange

    $10.49

    $0.04 per serving

    • Use code FOURTH to save 15%
    Natural Factors ThyroSense Thyroid Formula

    $10.79

    $0.36 per serving

    • Use code FOURTH to save 15%
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