21st Century Arthri-Flex Advantage® + Vitamin D3, 120 Coated Tablets
UPC: 740985226230
21st Century's Arthri-Flex Advantage + Vitamin D3 is a joint health supplement designed to support comfort, flexibility, and mobility. It combines 1,500 mg of Glucosamine Sulfate and 1,500 mg of MSM with 80 mg of Hyaluronic Acid and a proprietary blend that includes Type II Chicken Sternum Collagen, Boswellia serrata extract, and mineral nutrients like magnesium glycinate. The formula is enhanced with 2,000 IU of Vitamin D3, which the manufacturer notes is included for added bone health support.
This product distinguishes itself by incorporating a collagen source specifically from chicken sternum, along with herbal extracts such as grape seed and white willow. The minerals are provided in glycinate forms, which are often noted for their bioavailability. The manufacturer states it is formulated based on over 30 years of experience, with ingredients sourced through a vendor certification program and subjected to rigorous testing. It is available as coated tablets in a 120-count bottle, providing a 30-day supply at the recommended serving of four tablets daily, and carries Non-GMO and Gluten-Free certifications.
At a glance
Supplement Facts
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Total Carbohydrate | 1 g | <1%† |
| Vitamin C (as Calcium Ascorbate) | 100 mg | 111% |
| Vitamin D3 (as Cholecalciferol) | 50 mcg (2,000 IU) | 250% |
| Magnesium (as Magnesium Glycinate) | 200 mg | 48% |
| Zinc (as Zinc Glycinate) | 15 mg | 136% |
| Copper (as Copper Glycinate) | 0.5 mg | 56% |
| Manganese (as Manganese Glycinate) | 5 mg | 217% |
| Molybdenum (as Molybdenum Glycinate) | 220 mcg | 489% |
| Potassium (as Potassium Chloride) | 195 mg | 4% |
| Glucosamine Sulfate • 2KCI | 1,500 mg | ** |
| MSM (Methylsulfonylmethane) | 1,500 mg | ** |
| Hyaluronic Acid (as Sodium Hyaluronate) | 80 mg | ** |
| Proprietary Blend | 1,045 mg | ** |
| † Daily Value not established | ||
Other Ingredients
Cellulose, stearic acid. Contains <2% of: croscarmellose sodium, magnesium silicate, magnesium stearate, polyethylene glycol, polyplasdone, polyvinyl alcohol, silicon dioxide, titanium dioxide.
Contains: shellfish (shrimp, crab, lobster, crayfish)
No added yeast, soy, dairy or artificial flavors.
Certifications & Claims
Label Information
Directions, warnings, and other information directly from the product label.
Suggested Use
As a dietary supplement, adults take four (4) tablets daily, two (2) in the morning and two (2) in the afternoon, preferably with meals, or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.
Warning
Consult a healthcare provider prior to use if pregnant, nursing, taking medications, including blood thinners, have a medical condition or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur.Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.
Product Info
- Brand
- 21st Century
- UPC
- 740985226230
- Package Qty
- 120 count
- Dimensions
- 5.4 x 2.85 x 2.75 in
- Shipping Weight
- 0.55 lb
- First Available
- 06/2011





