Optimum Nutrition Glucosamine + CSA Super Strength supplement bottle
Optimum Nutrition

Glucosamine + CSA Super Strength Review

What We Researched
2 active ingredients analyzed · 5 inactive ingredients decoded · 10 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Glucosamine Sulfate Potassium 1.5 g
Chondroitin Sulfate Sodium 1.2 g
Bioavailability Excellent

Absorption Rating

  • Glucosamine Sulfate Potassium Good
  • Chondroitin Sulfate Sodium Good
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Pharmaceutical Glaze
  • Magnesium Stearate
  • Croscarmellose Sodium
  • Silica
Efficacy Excellent

Dosage Analysis

  • Glucosamine Sulfate Potassium 1.5 g Effective
  • Chondroitin Sulfate Sodium 1.2 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Glucosamine Sulfate Potassium 1.5 g
Chondroitin Sulfate Sodium 1.2 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Pharmaceutical Glaze Generally_safe

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

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Brand Trust Report
Optimum Nutrition

Founded 1986 · Downers Grove, IL, United States · 311 products · optimumnutrition.com

Certifications

10 certifications
Consumerlab Verified Source
Informed Sport Verified Source
Labdoor Verified Source
Nsf Certified For Sport Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Informed Choice Verified

Transparency

5 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source
Contains Proprietary Blend — True

Violation History

5 incidents
Prop 65 Lead2025-07-21Source
Prop 65 Lead2024-11-22Source
Recall Various nutritional and beverage products2022-07-28Source
Prop 65 Lead2017-03-10Source
Lawsuit Deceptive claims about the plant-based enzyme 'Aminogen' and its effect on protein digestion and absorption.2013Source
Related Supplements
Frequently Asked Questions
Is Optimum Nutrition Glucosamine + CSA Super Strength a good supplement?

Optimum Nutrition Glucosamine + CSA Super Strength received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 60 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Optimum Nutrition, holds a brand trust score of 100/100 with 10 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport.

What are the ingredients in Optimum Nutrition Glucosamine + CSA Super Strength?

Optimum Nutrition Glucosamine + CSA Super Strength contains 2 active ingredients: Glucosamine Sulfate Potassium (1.5 g), Chondroitin Sulfate Sodium (1.2 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Optimum Nutrition Glucosamine + CSA Super Strength safe to take?

Optimum Nutrition Glucosamine + CSA Super Strength 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 Optimum Nutrition a trustworthy supplement brand?

Optimum Nutrition receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1986 and headquartered in Downers Grove, IL, United States, the company offers 311 products in their lineup. They hold 10 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Optimum Nutrition has 5 historical regulatory incidents on record, which are factored into the trust score.

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 150,000 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 150,000 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 150,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. 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.