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Free Sample Program for Your Patients

Dona Supplement Box

Introducing our Free Sample Program for Dona. Thousands of Healthcare providers around the country recommend Dona to their patients to help manage joint health. Now you can too. Simply fill out the sample request form and your office will receive FREE patient samples as well as product information.

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What is Dona®?

Dona® contains crystalline glucosamine sulfate, a naturally occuring substace found in cartilage to cushion joints. Dona® helps in maintaining cartilage health so that you can actively participate in daily activities such as walking, climbing stairs, etc.

Dona® has been proven effective and safe in major clinical trials. It may promote cartilage health, lubricate joints, and support joint mobility and flexibility. Dona® can be taken with water or juice, with or without food and even in the morning or at night.

Dona Prescription

Dona® has been shown effective in two 3-year controlled clinical studies*

  • Helps maintain the normal function of cartilage*
  • Supports healthy joint function*
  • Supports joint mobility and flexibility*
  • Clinical strength*
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Supporting Your Joints

The joint is made up of bone and cartilage, with the synovial fluid between the bones in the joints, aiding lubricantion, thereby helping in movement. As we age, there tends to be a decrease in the volume of the synovial fluid, which can lead to reduced joint comfort.

Supports Healthy Joint Function
Supports Healthy Joint Function*
Helps maintain the normal function of cartilage*
Helps maintain the normal function of cartilage*

The Original Glucosamine

Dona® is the original Crystalline Glucosamine Sulfate that has been shown effective in two 3-year controlled clinical studies. Dona® helps maintain the normal function of cartilage and supports healthy joint function, mobility, and flexibility. Healthy cartilage allows you to keep doing the activities you love, such as walking, climbing stairs, swimming, running, and even the simple joy of picking up your child or grandchild.

  • Sold in over 60 Countries as a Prescription.
  • Recommended by healthcare providers
  • Over-the-counter in the USA.
  • Millions sold around the world.
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How Crystalline Glucosamine Sulfate Works

The crystalline glucosamine sulfate in Dona® may act by preventing the breakdown of muscles and cartilage around joints. It may also influence the body's response to joint discomfort, thereby decreasing joint tenderness and soreness. Crystalline glucosamine sulfate may also be known to prevent an inflammatory reaction in the joint that can be caused by aging or damage, thereby keeping your cartilage healthy. Healthy cartilage is necessary to keep your joints flexible and free from any discomfort.

Stretching Arm

While the exact mechanism by which crystalline glucosamine works is continuously being explored, it has been proposed to work in one of two ways.

  • Crystalline Glucosamine Sulfate provides a base for the production of glycosaminoglycans and proteoglycans (including chondroitin sulfate and hyaluronic acid), which are the building blocks of cartilage.
  • Glucosamine has been thought to stimulate the synthesis of glycosaminoglycans, proteoglycans, and collagen.

The two most common forms of glucosamine are glucosamine hydrochloride and glucosamine sulfate. Of the two, glucosamine sulfate - specifically crystalline glucosamine sulfate, has been evaluated for its effect on cartilage health; the effect of the hydrochloride form on cartilage still needs further conclusive evidence.

Clinical Research using Dona® Crystalline Glucosamine Sulfate

Medical Practice

Dona® is the original Crystalline Glucosamine Sulfate that has been proven effective in major clinical trials. Below are some highlights:

  • Results of the first 3-year study were published in 2001 in The Lancet, a prestigious, international medical journal, and showed Crystalline Glucosamine Sulfate to be effective in improving and maintaining joint flexibility and cartilage health.
  • In 2002, a second 3-year study was published in the JAMA's Archives of Internal Medicine confirming previous findings and suggesting that Crystalline Glucosamine Sulfate could be used to help maintain and stabilize joint function and cartilage.
  • An 8-year observational study was later conducted on patients taking glucosamine sulfate for 3 years and 5 years off. It found that Glucosamine Sulfate not only was beneficial for joint health but it decreases the chance of total knee replacement by 73%.
  • In a 6-month controlled clinical trial called the GUIDE Trail, it showed that Glucosamine Sulfate's efficacy on knee symptoms was significantly better on all parameters as compared to placebo and acetaminophen.
Holding Stomach

Get Your Free Patient Samples Today!

Join thousands of healthcare provides who recommend Dona to their patients. Each sample package includes a sample dispenser with over 25 individual sample pouches to hand out to your patients. Each sample includes 10% off discount codes for your patients to save on full products.

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