Glucosamine Relief®, 120 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calcium (as Calcium Carbonate) | 99 mg | 8% |
| Potassium | 131 mg | 3% |
| GlucosamineSulfate · 2KCI | 1,000 mg | ** |
Bioavailability Good
Absorption Rating
- Calcium (as Calcium Carbonate) Fair
- Potassium Good
- GlucosamineSulfate · 2KCI Fair
Other Ingredients Good
Fillers & Additives
- Cellulose
- Polyvinylpyrrolidone
- Stearic Acid
- Magnesium Silicate
- Magnesium Stearate
- Polyethylene Glycol Low
- Polyplasdone
- Polyvinyl Alcohol
- Titanium Dioxide High
Efficacy Very Poor
Dosage Analysis
- Calcium (as Calcium Carbonate) 99 mg Under-dosed
- Potassium 131 mg Under-dosed
- GlucosamineSulfate · 2KCI 1,000 mg Under-dosed
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Total Carbohydrate | <1 g | <1%† |
| Calcium (as Calcium Carbonate) | 99 mg | 8% |
| Potassium | 131 mg | 3% |
| GlucosamineSulfate · 2KCI | 1,000 mg | ** |
Other Ingredients
Cellulose Safe
Polyvinylpyrrolidone Generally_safe
Stearic Acid Safe
Magnesium Silicate Generally_safe
Magnesium Stearate Safe
Polyethylene Glycol Caution
Polyplasdone Generally_safe
Polyvinyl Alcohol Generally_safe
Titanium Dioxide Caution
Price Comparison
Price History
Tracked across major retailers. Updated periodically.
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Is 21st Century Glucosamine Relief®, 120 Tablets a good supplement?
21st Century Glucosamine Relief®, 120 Tablets received a product quality score of 52/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 4 active ingredients Of the 9 inactive ingredients, 3 are rated safe and 2 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 Relief®, 120 Tablets?
21st Century Glucosamine Relief®, 120 Tablets contains 4 active ingredients: Total Carbohydrate (<1 g), Calcium (as Calcium Carbonate) (99 mg), Potassium (131 mg), GlucosamineSulfate · 2KCI (1,000 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is 21st Century Glucosamine Relief®, 120 Tablets safe to take?
21st Century Glucosamine Relief®, 120 Tablets has been analyzed for ingredient safety across all its components. Of 9 inactive ingredients, 3 are rated safe. 2 ingredients are flagged for review: Polyethylene Glycol, Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. 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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