21st Century, Arthri-Flex Advantage, + Vitamin D3, 120 Coated Tablets


21st Century

Available Now!


  • Glucosamine, Chondroitin, MSM & Hyaluronic Acid 
  • Flexibility Support
  • Vitamin D for Bone Health
  • 80 mg Hyaluronic Acid Per Serving
  • Joint & Cartilage Support
  • Gluten Free
  • Bovine Free
  • Dietary Supplement
  • Now with Vitamin D3 to Support Normal Bone Health
  • Guaranteed Quality Laboratory Tested

Arthri-Flex Advantage + Vitamin D3, developed from joint nutrition science to support the comfort, flexibility and mobility of the body's joints.

Arthri-Flex Advantage + Vitamin D3 was developed as a multi-nutrient supplement that may support joint health and flexibility. Arthri-Flex Advantage + Vitamin D3 combines Glucosamine Sulfate & MSM (Methylsulfonylmethane) with our Proprietary Blend of premium Chicken Sternum Type II Collagen (naturally containing Chondroitin Sulfate), Hyaluronic Acid, herbal extracts, and mineral nutrients, that may work in synergy to support both joints & cartilage. Now with Vitamin D3 for its bone support potential.

Take The Advantage!

  • Supports Joint & Cartilage Health
  • Vitamin D3 for Bone Health
  • Promotes Normal Mobility Function

Support From The Inside Out

A combination of Glucosamine Sulfate and MSM along with our Proprietary Blend for supporting an active lifestyle.

Glucosamine Sulfate: Glucosamine supports flexibility and mobility. It also supports the formation of cartilage, an important element in joint health.

Chondroitin: In joint support applications, Chondroitin Sulfate helps to support joint fluids and their ability to cushion and lubricate.

MSM: A source of sulfur, MSM may promote the formation of collagen, an important component in the structure of cartilage and is vital for joints.

Hyaluronic Acid: This primary component is the backbone of the body's joint lubrication fluids.

Arthri-Flex Proprietary Blend: Premium Chicken Sternum Type II Collagen is a protein that has been studied for its ability to support joints and joint function. It also naturally contains Chondroitin Sulfate.

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.

Other Ingredients

Cellulose, stearic acid. Contains <2% of: bha, bht, croscarmellose sodium, gelatin, magnesium stearate, maltodextrin, peg, polyplasdone, polyvinyl alcohol, silicon dioxide, starch, sucrose, talc, titanium dioxide, vegetable oil, water.

Contains shellfish (shrimp, crab, lobster, crayfish).

No added yeast, soy, dairy or artificial flavors.


If you are diabetic, consult your physician before using this product. If you have a Shellfish allergy please consult your physician before using this product.

Consult a healthcare provider prior to use if: pregnant, nursing, on medications, 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.


While The Supplement Shop strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by The Supplement Shop.

Supplement Facts
Serving Size: 4 Tablets
Serving Per Container: 30
  Amount Per Serving %Daily Value
Vitamin C (as Calcium Ascorbate) 100 mg 110%
Vitamin D3 (as Cholecalciferol) 50 mcg (500 IU) 250%
Magnesium (as Magnesium Glycinate) 200 mg 50%
Zinc (as Zinc Glycinate) 15 mg 140%
Copper (as Copper Glycinate) 0.5 mg 60%
Manganese (as Manganese Glycinate) 5 mg 220%
Molybdenum (as Molybdenum Glycinate) 220 mcg 490%
Potassium (as Potassium Chloride) 195 mg 4%
Glucosamine Sulfate • 2KCI 1500 mg **
MSM (Methylsulfonylmethane) 1500 mg **
Hyaluronic Acid (as Sodium Hyaluronate) 80 mg **
Proprietary Blend
Containing: Premium Chicken Sternum Type II Collagen (naturally occurring Chondroitin Sulfate), Hyaluronate Acid (as Sodium Hyaluronate), Boron Glycinate, Boswellia serrata Extract, Grape Seed Extract, White Willow Bark Extract.
1045 mg **
**Daily Value (DV) not established.