Superior Source D3, 25 mcg (1000 IU), 100 MicroLingual® Instant Dissolve Tablets supplement bottle
Superior Source

D3, 25 mcg (1000 IU), 100 MicroLingual® Instant Dissolve Tablets

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
100
Product Score Excellent
67
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as Cholecalciferol) (1,000 IU) 25 mcg 125%
Bioavailability Excellent

Absorption Rating

  • Vitamin D (as Cholecalciferol) (1,000 IU) Good
Other Ingredients Excellent

Fillers & Additives

  • Lactose (Milk) and Acacia Gum
Efficacy Excellent

Dosage Analysis

  • Vitamin D (as Cholecalciferol) (1,000 IU) 25 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D (as Cholecalciferol) (1,000 IU) 25 mcg 125%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Lactose (Milk) and Acacia Gum Generally_safe

It is used as a filler and binder.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$10$9$7$6$5 Mar 12 $7.79$7.00
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Superior Source

Founded 1969 · Los Angeles, California, United States · 74 products · superiorsourcevitamins.com/

Certifications

1 certification
Consumerlab Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed
In House Testing — Verified Source
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Frequently Asked Questions
Is Superior Source D3, 25 mcg (1000 IU) a good supplement?

Superior Source D3, 25 mcg (1000 IU), 100 MicroLingual® Instant Dissolve Tablets 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 100 servings per container. Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review. The manufacturer, Superior Source, holds a brand trust score of 67/100 with 1 verified certifications including Consumerlab.

What are the ingredients in Superior Source D3, 25 mcg (1000 IU)?

Superior Source D3, 25 mcg (1000 IU) contains 1 active ingredients: Vitamin D (as Cholecalciferol) (1,000 IU) (25 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Superior Source D3, 25 mcg (1000 IU) safe to take?

Superior Source D3, 25 mcg (1000 IU), 100 MicroLingual® Instant Dissolve Tablets 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 Superior Source a trustworthy supplement brand?

Superior Source receives a brand trust score of 67/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1969 and headquartered in Los Angeles, California, United States, the company offers 74 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. No regulatory violations or FDA warning letters were found in our research.

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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. 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.