🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

0.033 mL Serving Size
1515 Servings
Mineral Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

800 mcg (533% DV)
📊 5.3× RDA — above typical dose (UL: 1.1 mg) 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.8mg UL 1.1mg

Other Ingredients

Glycerin Water Ethanol

Label Claims — Verification

All Other
Structure/Function
All Other (98% of products) Structure/Function (74% of products) Nutrient (53% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Usage: For adults, take 1 drop per day or as directed by a health professional. Shake well before use.

⚠️ Warnings & Precautions

Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding or trying to conceive, or if you are taking medication, have a medical condition or anticipate a surgery.

Keep out of the reach of children.

Sealed for your protection. Do not use if seal is broken.

🧪 Formulation Notes

Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.

Suitable for vegetarians/vegans.

800 mcg iodine

Additional Information

isura Non-GMO - Mass spec Documentation - Lab tested

Supports a healthy thyroid gland.

Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

For freshness, store in a cool, dry place.

Product of Canada Recyclable container and label.

Purity & potency guaranteed

Thyroid gland support

R2

Product Details

UPC / SKU 0 68958 02909 2
DSLD Entry Date 2017-07-25
Product Type Mineral
Form Liquid
DSLD ID 75955
Data Updated 2026-04-11

Research Evidence

292 Research Sources
57 Avg Quality Score
160 Meta Analysis
70 Systematic Review
36 Rct
8 Cochrane Review
8 Clinical Trial
3 Regulatory Source
2 Narrative Review
2 Other
1 Guideline
1 Openfda Safety
A Umbilical cord antiseptics for preventing sepsis and death among newborns
Meta Analysis The Cochrane database of systematic reviews 2026
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019
A Interventions for cutaneous molluscum contagiosum
Meta Analysis The Cochrane database of systematic reviews 2017
A Chlorhexidine vs Povidone-Iodine and Incidence of Catheter-Related Infections: A Systematic Review and Meta-Analysis
Meta Analysis JAMA network open 2026
B Radioiodine Remnant Ablation for Differentiated Thyroid Cancer: A Systematic Review and Meta-analysis
Meta Analysis JAMA otolaryngology-- head & neck surgery 2021
B Risk of primary breast cancer in patients with differentiated thyroid cancer undergoing radioactive iodine therapy: a systematic review and meta-analysis
Meta Analysis European journal of nuclear medicine and molecular imaging 2022
B Alcoholic chlorhexidine skin preparation or triclosan-coated sutures to reduce surgical site infection: a systematic review and meta-analysis of high-quality randomised controlled trials
Meta Analysis The Lancet. Infectious diseases 2022
B Oral hygiene care for critically ill patients to prevent ventilator-associated pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
B Interventions for ingrowing toenails
Meta Analysis The Cochrane database of systematic reviews 2012
B Interventions for the management of malignant pleural effusions: a network meta-analysis
Systematic Review The Cochrane database of systematic reviews 2016
View all evidence for Iodine →

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