Source Naturals UC-II®, 120 Capsules supplement bottle
Source Naturals

UC-II®, 120 Capsules

What We Researched
3 active ingredients analyzed · 5 inactive ingredients decoded · 1 brand certification checked · 3 retailers compared · Last updated: Mar 2026
62
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as dibasic calcium phosphate) 100 mg 8%
UC-II® Standardized Cartilage 40 mg
Total Collagen 10 mg
Bioavailability Fair

Absorption Rating

  • Calcium (as dibasic calcium phosphate) Fair
  • UC-II® Standardized Cartilage Poor
  • Total Collagen Good
Other Ingredients Excellent

Fillers & Additives

  • Dibasic Calcium Phosphate
  • Gelatin (Capsule)
  • Silica
  • Potassium Chloride
  • Magnesium Stearate
Efficacy Very Poor

Dosage Analysis

  • Calcium (as dibasic calcium phosphate) 100 mg Under-dosed
  • Total Collagen 10 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as dibasic calcium phosphate) 100 mg 8%
UC-II® Standardized Cartilage 40 mg
Total Collagen 10 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Dibasic Calcium Phosphate Generally_safe

It is used as a filler and to improve tablet hardness.

Gelatin (Capsule) Safe

It is used as a material for making capsules.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Potassium Chloride Safe

It is used to provide potassium, an essential mineral.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$68$66$64$62$60 Mar 12 $66.00$62.29
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
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals UC-II®, 120 Capsules a good supplement?

Source Naturals UC-II®, 120 Capsules received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 3 active ingredients Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals UC-II®, 120 Capsules?

Source Naturals UC-II®, 120 Capsules contains 3 active ingredients: Calcium (as dibasic calcium phosphate) (100 mg), UC-II® Standardized Cartilage (40 mg), Total Collagen (10 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals UC-II®, 120 Capsules safe to take?

Source Naturals UC-II®, 120 Capsules 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. 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.