Customize Your Shopping Experience!

Please select the destination country, language, and currency you prefer.

Available Shipping Methods
Available Payment Methods
Added to Cart
Combo Discount:
View/Edit Cart Checkout
Cart Total:
Customers Also Bought:

Enzymatic Therapy, GS-500, Glucosamine Sulfate, Joint Health, 240 Capsules

By Enzymatic Therapy

Our Price:
You Save:
$19.42 (37%)
  • Volume Discount
  • Buy 4+
    Save 5%
Earn 10% Loyalty Credit ?

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

In Stock
  • Product Code: EMT-01787
  • UPC Code: 763948017874
  • Package Quantity: 240 Capsules
  • Dimensions: 3.1 x 3.1 x 5.7 in, 0.6 lbs (0.27 kg)
Bundle Offer
Save $2.00 when you purchase these items today for only $37.03


Combo Discount:



- $2.00


Product Overview

  • Dietary Supplement
  • Stable Form
  • Shown to Help Build and Support Joint Cartilage
  • What Better Feels Like
  • Purity, Safety & Performance - Laboratory Tested

Clinical studies show glucosamine sulfate is a key building block for connective tissue and cartilage. The glucosamine sulfate in doctor-recommended GS-500 dietary supplement is up to 90% absorbable, which makes it more readily available to the body to support healthy articular cartilage.

GS-500 is the original glucosamine sulfate product in the United States—the standard by which all the rest are judged.

ETI is an FDA-registered Drug Establishment.

Suggested Use

Recommendations: Three capsules daily.

Other Ingredients

Cellulose, vegetable capsule (modified cellulose), magnesium stearate, and silicon dioxide.

Contains no sugar, yeast, wheat, gluten, corn, soy, dairy products, artificial coloring, artificial flavoring, or preservatives. This product contains natural ingredients; color variations are normal.


If pregnant, nursing, or taking prescription drugs, consult your healthcare practitioner prior to use.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 3 capsules
Servings Per Container: 80
  Amount per 3 capsules %DV**
Calories 10  
Total Carbohydrate 2 g <1%**
Chloride (from glucosamine sulfate) 234 mg 7%
Sodium (from glucosamine sulfate) 150 mg 6%
Glucosamine Sulfate (stabilized) (shrimp shells) 1.5 g ***
**Percent Daily Values (DV) are based on a 2,000 calorie diet.
***Daily Value not established.

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars


Posted by Reviewer2215607 on Dec 28, 2007

This is a brand and product that I have used for years. It is a very good brand of glucosamine sulfate that supposedly helps in arthritis problems.

Was this review helpful to you?

Enzymatic Therapy, GS-500, 240 Ultracaps

Posted by Reviewer1426028 on Jan 01, 2008

My husband can tell in a day or two if the product actually has glucosamine in it. GS-500 DOES!!! Since most supplements don't come under the FDA, the manufacturers don't always put what they say in their products.

Was this review helpful to you?

I trust Enzymatic Therapy

Posted by Reviewer2476049 on Jan 09, 2008

This company is simply better quality than most.

Was this review helpful to you?


Posted by Reviewer1732446 on Jul 05, 2009

works for joint pain

Was this review helpful to you?


Posted by 5019407827851081206 on Dec 09, 2014

Husband and his Doctors have noticed great relief in his hand arthritis, even the size of the "knots" and mobility of his hands.

Was this review helpful to you?

See All Reviews