Nature's Lab Curcumin C3 Complex, 500 mg supplement bottle
Nature's Lab

Curcumin C3 Complex, 500 mg

What We Researched
9 active ingredients analyzed · 5 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
72
Product Score Fair
74
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Curcumin C3 Complex® Turmeric Root Extract (Curcuma longa) (standardized to 95% curcuminoids) 1,000 mg *
Boswellia serrata Extract (standardized to 65% total boswellic acids) (gum resin) 100 mg *
Ginger Root Extract (Zingiber officinale) 50 mg *
Green Tea Leaf Extract (Camellia sinensis) (standardized to 50% EGCG) 50 mg *
Rosemary Leaf Extract (Rosmarinus officinalis) 25 mg *
Holy Basil Leaf Extract (Ocimum sanctum) 25 mg *
Barberry Root Extract (Berberis vulgaris) 20 mg *
Chinese Skullcap Root Extract (Scutellaria baicalensis) 20 mg *
BioPerine® Black Pepper Extract (Piper nigrum) (fruit) (standardized to 95% piperine) 5 mg *
Bioavailability Good

Absorption Rating

  • Curcumin C3 Complex® Turmeric Root Extract (Curcuma longa) (standardized to 95% curcuminoids) Poor
  • Boswellia serrata Extract (standardized to 65% total boswellic acids) (gum resin) Good
  • Ginger Root Extract (Zingiber officinale) Fair
  • Green Tea Leaf Extract (Camellia sinensis) (standardized to 50% EGCG) Good
  • Rosemary Leaf Extract (Rosmarinus officinalis) Good
  • Holy Basil Leaf Extract (Ocimum sanctum) Fair
  • Barberry Root Extract (Berberis vulgaris) Fair
  • Chinese Skullcap Root Extract (Scutellaria baicalensis) Fair
  • BioPerine® Black Pepper Extract (Piper nigrum) (fruit) (standardized to 95% piperine) Good
Other Ingredients Excellent

Fillers & Additives

  • Hypromellose (Capsule)
  • Rice Hull
  • Rice Extract
  • Gum Acacia
  • Sunflower Oil
Efficacy Poor

Dosage Analysis

  • Curcumin C3 Complex® Turmeric Root Extract (Curcuma longa) (standardized to 95% curcuminoids) 1,000 mg Effective
  • Boswellia serrata Extract (standardized to 65% total boswellic acids) (gum resin) 100 mg Under-dosed
  • Ginger Root Extract (Zingiber officinale) 50 mg Under-dosed
  • Green Tea Leaf Extract (Camellia sinensis) (standardized to 50% EGCG) 50 mg Under-dosed
  • Rosemary Leaf Extract (Rosmarinus officinalis) 25 mg Under-dosed
  • Holy Basil Leaf Extract (Ocimum sanctum) 25 mg Under-dosed
  • Chinese Skullcap Root Extract (Scutellaria baicalensis) 20 mg Under-dosed
  • BioPerine® Black Pepper Extract (Piper nigrum) (fruit) (standardized to 95% piperine) 5 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Curcumin C3 Complex® Turmeric Root Extract (Curcuma longa) (standardized to 95% curcuminoids) 1,000 mg *
Boswellia serrata Extract (standardized to 65% total boswellic acids) (gum resin) 100 mg *
Ginger Root Extract (Zingiber officinale) 50 mg *
Green Tea Leaf Extract (Camellia sinensis) (standardized to 50% EGCG) 50 mg *
Rosemary Leaf Extract (Rosmarinus officinalis) 25 mg *
Holy Basil Leaf Extract (Ocimum sanctum) 25 mg *
Barberry Root Extract (Berberis vulgaris) 20 mg *
Chinese Skullcap Root Extract (Scutellaria baicalensis) 20 mg *
BioPerine® Black Pepper Extract (Piper nigrum) (fruit) (standardized to 95% piperine) 5 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hypromellose (Capsule) Safe

It is used as a material for making vegetarian capsules.

Rice Hull Generally_safe

It is added to improve powder flow during manufacturing.

Rice Extract Safe

It is used as a filler or to provide specific rice-derived compounds.

Gum Acacia Safe

It is used as a thickener, binder, or emulsifier.

Sunflower Oil Safe

Helps dissolve and absorb fat-soluble vitamins.

Price Comparison

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

Brand Trust Report
Nature's Lab

Founded 2011 · Las Vegas, Nevada, United States · 44 products · natureslab.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Fda Warning Serious violations of FDA's regulations for Current Good Manufacturing Practice (CGMP) in Manufacturing, Packaging, Labeling, or Holding Operations for Dietary Supplements. Specifically, failure to establish required specifications for points, steps, or stages in the manufacturing process where control is necessary to ensure the quality of the dietary supplement.2022-07-12Source
Prop 65 Not specified in the notice summary2020-11-25Source
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Frequently Asked Questions
Is Nature's Lab Curcumin C3 Complex, 500 mg a good supplement?

Nature's Lab Curcumin C3 Complex, 500 mg received a product quality score of 72/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 9 active ingredients with 60 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Nature's Lab, holds a brand trust score of 74/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Nature's Lab Curcumin C3 Complex, 500 mg?

Nature's Lab Curcumin C3 Complex, 500 mg contains 9 active ingredients: Curcumin C3 Complex® Turmeric Root Extract (Curcuma longa) (standardized to 95% curcuminoids) (1,000 mg), Boswellia serrata Extract (standardized to 65% total boswellic acids) (gum resin) (100 mg), Ginger Root Extract (Zingiber officinale) (50 mg), Green Tea Leaf Extract (Camellia sinensis) (standardized to 50% EGCG) (50 mg), Rosemary Leaf Extract (Rosmarinus officinalis) (25 mg), Holy Basil Leaf Extract (Ocimum sanctum) (25 mg), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Lab Curcumin C3 Complex, 500 mg safe to take?

Nature's Lab Curcumin C3 Complex, 500 mg 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 Nature's Lab a trustworthy supplement brand?

Nature's Lab receives a brand trust score of 74/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2011 and headquartered in Las Vegas, Nevada, United States, the company offers 44 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. Note: Nature's Lab has 2 historical regulatory incidents 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. 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.