tnvitamins Sea Kelp 150 mcg supplement bottle
tnvitamins

Sea Kelp 150 mcg Review

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 1 brand certification checked · Last updated: Aug 2026
100
Product Score Excellent
77
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Iodine (as Kelp) 150 mcg 100%
Bioavailability Excellent

Absorption Rating

  • Iodine (as Kelp) Good
Other Ingredients Excellent

Fillers & Additives

  • Maltodextrin
  • Di-Calcium Phosphate
  • Cellulose
  • Stearic Acid
  • Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • Iodine (as Kelp) 150 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Iodine (as Kelp) 150 mcg 100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Di-Calcium Phosphate Generally_safe

It is used as a filler or source of calcium and phosphorus.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Brand Trust Report
tnvitamins

Founded 1979 · Deer Park, NY, USA · 136 products · tnvitamins.com/

Certifications

1 certification
Consumerlab Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

1 incident
Fda Warning Significant violations of Current Good Manufacturing Practice (CGMP) regulations for dietary supplements.2017-08-16Source
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Frequently Asked Questions
Is tnvitamins Sea Kelp 150 mcg a good supplement?

tnvitamins Sea Kelp 150 mcg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 250 servings per container. Of the 5 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, tnvitamins, holds a brand trust score of 77/100 with 1 verified certifications including Consumerlab.

What are the ingredients in tnvitamins Sea Kelp 150 mcg?

tnvitamins Sea Kelp 150 mcg contains 1 active ingredients: Iodine (as Kelp) (150 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is tnvitamins Sea Kelp 150 mcg safe to take?

tnvitamins Sea Kelp 150 mcg has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is tnvitamins a trustworthy supplement brand?

tnvitamins receives a brand trust score of 77/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1979 and headquartered in Deer Park, NY, USA, the company offers 136 products in their lineup. They hold 1 verified certifications including Consumerlab. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: tnvitamins has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.