NOW Sustained Release Glucosamine & Chondroitin supplement bottle
NOW

Sustained Release Glucosamine & Chondroitin

What We Researched
10 active ingredients analyzed · 5 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
76
Product Score Fair
89
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 3 g 1%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Manganese (as Manganese Amino Acid Chelate) 6 mg 300%
Potassium 270 mg 8%
Glucosamine Sulfate (as Glucosamine Potassium Sulfate Complex) 1.5 g
Chondroitin Sodium Sulfate (as Bovine Cartilage) 1.2 g
Hyaluronic Acid (as Sodium Hyaluronate) 25 mg
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • Vitamin C (as Ascorbic Acid) Fair
  • Manganese (as Manganese Amino Acid Chelate) Good
  • Potassium Good
  • Glucosamine Sulfate (as Glucosamine Potassium Sulfate Complex) Good
  • Chondroitin Sodium Sulfate (as Bovine Cartilage) Fair
  • Hyaluronic Acid (as Sodium Hyaluronate) Good
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Stearic Acid
  • Magnesium Stearate
  • Silica
  • Vegetable Coating
Efficacy Poor

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
  • Manganese (as Manganese Amino Acid Chelate) 6 mg High
  • Potassium 270 mg Under-dosed
  • Glucosamine Sulfate (as Glucosamine Potassium Sulfate Complex) 1.5 g Effective
  • Chondroitin Sodium Sulfate (as Bovine Cartilage) 1.2 g Under-dosed
  • Hyaluronic Acid (as Sodium Hyaluronate) 25 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 15 {Calories}
Total Carbohydrates 3 g 1%
Protein 0.5 g 1%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Manganese (as Manganese Amino Acid Chelate) 6 mg 300%
Sodium 125 mg 5%
Potassium 270 mg 8%
Glucosamine Sulfate (as Glucosamine Potassium Sulfate Complex) 1.5 g
Chondroitin Sodium Sulfate (as Bovine Cartilage) 1.2 g
Hyaluronic Acid (as Sodium Hyaluronate) 25 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Vegetable Coating Safe

It is used to coat tablets or capsules for easier swallowing.

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
NOW

Founded 1968 · Bloomingdale, Illinois, USA · 53 products · nowfoods.com

Certifications

5 certifications
Informed Sport Verified Source
Npa Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is NOW Sustained Release Glucosamine & Chondroitin a good supplement?

NOW Sustained Release Glucosamine & Chondroitin received a product quality score of 76/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 10 active ingredients with 30 servings per container. All 5 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NOW, holds a brand trust score of 89/100 with 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in NOW Sustained Release Glucosamine & Chondroitin?

NOW Sustained Release Glucosamine & Chondroitin contains 10 active ingredients: Calories (15 {Calories}), Total Carbohydrates (3 g), Protein (0.5 g), Vitamin C (as Ascorbic Acid) (60 mg), Manganese (as Manganese Amino Acid Chelate) (6 mg), Sodium (125 mg), and 4 more. Notable high-dose ingredients include Manganese at 300% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NOW Sustained Release Glucosamine & Chondroitin safe to take?

NOW Sustained Release Glucosamine & Chondroitin has been analyzed for ingredient safety across all its components. All 5 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NOW a trustworthy supplement brand?

NOW receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 53 products in their lineup. They hold 5 verified certifications including Informed Sport, Npa Gmp, Fda Gmp Inspections, Non Gmo Project. 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.

How to take turmeric?

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 use turmeric?

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.