21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets supplement bottle
21st Century

Glucosamine Chondroitin Advanced, 120 Coated Tablets

What We Researched
9 active ingredients analyzed · 8 inactive ingredients decoded · 2 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
51
Product Score Poor
76
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Glucosamine HCl 1,500 mg ***
MSM (Methylsulfonylmethane) 1,500 mg ***
Chondroitin Sulfate Sodium 200 mg ***
Antioxidant Proprietary BlendChinese Skullcap (root) (Scutellaria baicalensis), Black Catechu (wood) (Acacia catechu), Maltodextrin 250 mg ***
Hyaluronic Acid (as Sodium Hyaluronate) 3.3 mg ***
Bioavailability Very Good

Absorption Rating

  • Glucosamine HCl Fair
  • MSM (Methylsulfonylmethane) Good
  • Chondroitin Sulfate Sodium Good
  • Antioxidant Proprietary BlendChinese Skullcap (root) (Scutellaria baicalensis), Black Catechu (wood) (Acacia catechu), Maltodextrin Fair
  • Hyaluronic Acid (as Sodium Hyaluronate) Good
Other Ingredients Very Poor

Fillers & Additives

  • Cellulose
  • Magnesium Stearate
  • PEG Medium
  • Polyplasdone
  • Polyvinyl Alcohol
  • Silicon dioxide stearic acid
  • Talc High
  • Titanium Dioxide High
Efficacy Poor

Dosage Analysis

  • Glucosamine HCl 1,500 mg Effective
  • MSM (Methylsulfonylmethane) 1,500 mg Under-dosed
  • Chondroitin Sulfate Sodium 200 mg Under-dosed
  • Hyaluronic Acid (as Sodium Hyaluronate) 3.3 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 5
Total Carbohydrate 2 g <1%‡
Total Sugars 1 g **
Sodium 20 mg <1%
Glucosamine HCl 1,500 mg ***
MSM (Methylsulfonylmethane) 1,500 mg ***
Chondroitin Sulfate Sodium 200 mg ***
Antioxidant Proprietary BlendChinese Skullcap (root) (Scutellaria baicalensis), Black Catechu (wood) (Acacia catechu), Maltodextrin 250 mg ***
Hyaluronic Acid (as Sodium Hyaluronate) 3.3 mg ***

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

PEG Caution

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

Polyplasdone Generally_safe

It is used to help tablets and capsules break down in the body.

Polyvinyl Alcohol Generally_safe

It is used as a coating for tablets or capsules.

Silicon dioxide stearic acid Unknown
Talc Avoid

It is used to improve powder flow and prevent clumping.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$18$17$16$15$14 Mar 12 $15.99
iHerb

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

Brand Trust Report
21st Century

Founded 1991 · Tempe, Arizona, United States · 231 products · 21stcenturyvitamins.com/

Certifications

2 certifications
Consumerlab Verified
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Claimed Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

4 incidents
Prop 65 Lead2021-06-22Source
Recall Vitamin D3 5000 IU Tablets2021-05-19Source
Lawsuit False advertising of Glucosamine/Chondroitin supplements.2012Source
Prop 65 Lead2008-12-23Source
Related Supplements
Frequently Asked Questions
Is 21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets a good supplement?

21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets received a product quality score of 51/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 9 active ingredients with 40 servings per container. Of the 8 inactive ingredients, 2 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 Chondroitin Advanced, 120 Coated Tablets?

21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets contains 9 active ingredients: Calories (5), Total Carbohydrate (2 g), Total Sugars (1 g), Sodium (20 mg), Glucosamine HCl (1,500 mg), MSM (Methylsulfonylmethane) (1,500 mg), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is 21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets safe to take?

21st Century Glucosamine Chondroitin Advanced, 120 Coated Tablets has been analyzed for ingredient safety across all its components. Of 8 inactive ingredients, 2 are rated safe. 2 ingredients are flagged for review: PEG, 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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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.

How to take turmeric for inflammation?

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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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.