Glucosamine / Chondroitin, Original Strength, 200 Easy to Swallow Capsules
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Potassium | 66 mg | 2% |
| †Glucosamine Sulfate · 2KCl | 500 mg | ** |
| †Chondroitin Sulfate | 400 mg | ** |
Bioavailability Excellent
Absorption Rating
- Potassium Good
- †Glucosamine Sulfate · 2KCl Good
- †Chondroitin Sulfate Good
Other Ingredients Excellent
Fillers & Additives
- Gelatin
- Magnesium Silicate
- Cellulose
- Magnesium Stearate
- Stearic Acid
Efficacy Very Poor
Dosage Analysis
- Potassium 66 mg Under-dosed
- †Glucosamine Sulfate · 2KCl 500 mg Under-dosed
- †Chondroitin Sulfate 400 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Total Carbohydrate | 1 mg | < 1%‡ |
| Sodium | 40 mg | 2% |
| Potassium | 66 mg | 2% |
| †Glucosamine Sulfate · 2KCl | 500 mg | ** |
| †Chondroitin Sulfate | 400 mg | ** |
Other Ingredients
Gelatin Safe
Magnesium Silicate Generally_safe
Cellulose Safe
Magnesium Stearate Safe
Stearic Acid Safe
Price Comparison
Price History
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Is 21st Century Glucosamine / Chondroitin, Original Strength a good supplement?
21st Century Glucosamine / Chondroitin, Original Strength, 200 Easy to Swallow Capsules received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 5 active ingredients with 100 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, 21st Century, holds a brand trust score of 76/100 with 2 verified certifications including Consumerlab, Nsf Gmp.
What are the ingredients in 21st Century Glucosamine / Chondroitin, Original Strength?
21st Century Glucosamine / Chondroitin, Original Strength contains 5 active ingredients: Total Carbohydrate (1 mg), Sodium (40 mg), Potassium (66 mg), †Glucosamine Sulfate · 2KCl (500 mg), †Chondroitin Sulfate (400 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century Glucosamine / Chondroitin, Original Strength safe to take?
21st Century Glucosamine / Chondroitin, Original Strength, 200 Easy to Swallow 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 21st Century a trustworthy supplement brand?
21st Century receives a brand trust score of 76/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1991 and headquartered in Tempe, Arizona, United States, the company offers 231 products in their lineup. They hold 2 verified certifications including Consumerlab, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: 21st Century has 4 historical regulatory incidents on record, which are factored into the trust score.
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This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.
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