DONA™ Glucosamine Sulfate

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Product Description

For over a decade, millions of people, in more than 60 countries around the world, have benefited from DONA™. Only DONA™ contains the ORIGINAL Crystalline Glucosamine Sulfate that has been thoroughly studied and shown effective to promote cartilage metabolism, protect joint structure and support joint mobility.

DONA™ is the most effective and proven way to reduce joint discomfort and help people return to their normal daily activities.


Buy 5 Boxes, Receive the 6th Box FREE!

For your convenience you can now choose from a variety of DONA™ options. Please choose 6 in any combination:

Bottles of Caplets:  
Blister Packs of Caplets:  
Boxes of Powder:

What Is DONA™?

If you suffer from joint discomfort, DONA™ Crystalline Glucosamine Sulfate can help.

If joint discomfort is preventing you from doing things such as walking in the park, running, swimming or even the simple joy of picking up your grandchild, here is good news. Clinical studies have shown that Crystalline Glucosamine Sulfate can improve joint flexibility and support overall joint health.

DONA™ is the leading Glucosamine Sulfate.

DONA™ is the only Glucosamine that has been proven effective in major clinical trials. It promotes cartilage metabolism, protects joint structure and supports joint mobility and flexibility. It works by helping maintain and stabilize the cartilage between the joints. Healthy cartilage keeps your joints flexible and that makes just about everything you do easier!

DONA™ was used in over 90% of all the clinical studies and in the only two 3-year studies.

DONA™ has been THE Glucosamine Sulfate used in over 90% of the clinical studies done on glucosamine sulfate. In 2001, the results of the first 3-year study were published by The Lancet, a prestigious, international medical journal, that showed DONA™ Crystalline Glucosamine Sulfate to be effective in improving and maintaining joint flexibility. In 2002, a second 3-year study was published in the JAMA's Archives of Internal Medicine confirming those results and "suggest[ed] that Glucosamine Sulfate could be a disease modifying agent." In both studies, the authors stated that the results cannot be generalized to other sources of Glucosamine products or to other brands. No other Glucosamine brands can back up results like DONA™ can.

Feel better after two weeks.

Both studies showed that after using DONA™ for two weeks, most people felt the same symptom relief as an Anti-Inflammatory drug like Ibuprofen... and DONA™ is much easier on your stomach than Non-Steroidal Anti-Inflammatory drugs.

Patented Process

What makes DONA unique is that it is obtained through a patented process, and only DONA™ contains the original active ingredient Crystalline Glucosamine Sulfate.

DONA™ is available over-the-counter in the U.S.

DONA™ was developed by RottaPharm, a European Pharmaceutical company, and it has gone through a comprehensive clinical research program. In fact, DONA™ is the only Glucosamine Sulfate that has been proven effective in major clinical trials. During the last 5 years, more than 15,000,000 patients per month have been treated with DONA™ and its safety record is impeccable. Now you too can get the benefits with the original Crystalline Glucosamine Sulfate that has been proven effective by over 90% of the clinical studies done worldwide. Get DONA™ over-the-counter without a prescription in the United States.

Freedom from joint discomfort.

Years of activities from sports to daily tasks place a great deal of stress on our joints. Cartilage wears thin, and in time, it breaks down. DONA™ has been proven to help support joint health and maintain and promote healthy cartilage. One of the most important parts of your life is the freedom to do the things you have always enjoyed -running, swimming, playing basketball, or even just walking - without any joint discomfort. This is what DONA™ can do for you.

Beware of imitations:

DONA™, the Original Crystalline Glucosamine Sulfate is exactly that: The Original. The only brand that has done 150 pre-clinical and clinical studies with 12,125 subjects and 91 leading institutions. How many other Glucosamines can say that? None. In fact, leading medical journals like The Lancet and JAMA's Archives of Internal Medicine caution that without head-to-head trials, other glucosamine products, like Glucosamine hydrochloride (HCI), may not provide the same benefits as DONA™. That's why we urge you to beware of imitations as not all Glucosamines are created equal. Only DONA™ is the original with the clinical studies to prove its effectiveness. It is available without a prescription, in once-a-day formulations.

Powder or Caplets

The recommended dose is 1500 mg. The product is available in powder or caplets and is to be taken only once a day. Each packet of DONA™ powder is a one full daily dose. If you choose DONA™ caplets, you should take 2 pills once-a-day. Please note, the caplets are available in two different packaging options: Bottles or Blisters. The bottles come with the caplets loose in a bottle. The Blisters come with the caplets 10 to a sheet, where each caplet is inside a bubble where you punch out the back.

Supplement Facts

Directions for Use:

POWDER – Dissolve the content of one packet in water or juice before taking.

CAPLETS (Bottle and Blisters) – Take two caplets together daily with water or juice.


Due to its mechanism of action, it may take 1-2 weeks, or possibly longer, to notice any effects. Optimal effects on joint mobility have been observed after 12 weeks of daily administration.

Store in a cool, dry place.

Keep out of the reach of children.

As with any nutritional product, please consult your physician before taking. It you are pregnant or breast feeding, ask you Doctor before taking.

Use only as directed. Results May Vary.

Other information:

Glucosamine is derived from shellfish; if you are allergic to shellfish, please consult your doctor before taking.

DONA™ contains the original Crystalline Glucosamine Sulfate discovered and patented by Rotta Research Laboratorium, sold in more than 60 countries around the world as a prescription drug.

Taking DONA™ with or without food is up to the customer. We simply ask that customers be consistent.

Taking DONA™ in the morning or at night is up to the customer. We simply ask that customers be consistent.

DONA™ is a pure and chemically well characterized compound.

DONA™ is manufactured in accordance with Good Manufacturing Practices.


Overall Rating: 56 review(s)

Review Posted by Rating

  • Keeps me from crying.

    Keeps me from crying when I walk up stairs. True story, and I live on the 2nd floor. My doctor recommended Dona because they actually put in as much glucosamine as they say they do. A lot of brands don't, I've tried a few others and they were worthless. If it wasn't for Dona I wouldn't have been able to move in with my husband because of the stairs.


  • First time I have seen a difference using glucsominer!!

    I have just finished my first box of DONA and I can really FEEL the difference. I have osteoarthritis and I have had injections, pills, and there was no change in my condition! Since I have been taking DONA, I have much more mobility and less stiffness after only two weeks. So, I am sold on it, so far. I am very optimistic about using my second box. I really have faith in this product! Everyone should try it! I think you will be amazed as I was. And this is only the start!


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