SKU: 80672564055

Natural Factors FlexAble® Glucosamine Sulfate 500mg - 500 Capsules

Sale price$29.69 Regular price$32.99
Save 10%

Pay in installments of $8.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Natural Factors FlexAble® Glucosamine Sulfate 500mg - 500 CapsulesClinical studies show that supplementing with glucosamine sulfate may stimulate joint repair. FlexAble Glucosamine Sulfate is fully reacted and is made up of a combination of glucose, glutamine and sulphur. It is generally believed that the sulphur component makes it more useful for joint problems. This formula is sodium free, for those who wish to reduce their sodium intake or people with hypertension. One common question: Can persons allergic to

Clinical studies show that supplementing with glucosamine sulfate may stimulate joint repair. FlexAble Glucosamine Sulfate is fully reacted and is made up of a combination of glucose, glutamine and sulphur. It is generally believed that the sulphur component makes it more useful for joint problems.

This formula is sodium free, for those who wish to reduce their sodium intake or people with hypertension.

One common question: Can persons allergic to sulfa drugs or sulfite take glucosamine? Michael Murray, ND responds: "When people say they are allergic to sulphur, what they really mean is they are allergic to the so-called sulfa drugs or sulfite-containing food additives. It is impossible to be allergic to sulphur because sulphur is an essential mineral. The sulfate form of sulphur is present in relatively high concentrations in human blood. In short, glucosamine sulfate is extremely well-tolerated, and no allergic reactions have been reported."

Uses and benefits

  • Helps reduce pain and inflammation of joints
  • Promotes proper lubrication of joints
  • May increase range of motion  
Ingredients
Each Capsule Contains:
667 mg of stabilized glucosamine sulfate complex providing:
Glucosamine Sulfate (shellfish exoskeletons) 500 mg

Non-medicinal ingredients

Gelatin capsule (gelatin, purified water), vegetable grade magnesium stearate (lubricant), rice starch.
Sodium <0.040 mg/capsule
Potassium <100 mg/cap

Please Note:

Children: Suitable for children at one-half the adult dosage. 

Pregnancy and Nursing: Considered safe during pregnancy and lactation. 

Seniors: No special precautions are known

Suggested Usage

1 capsule, 3 times daily with food, for a minimum of 4 weeks to see the beneficial effects or as directed by a health care practitioner. Keep out of the reach of children.

Additional Information

Glucosamine Sulfate Research Information  (pdf)
Glucosamine Sulfate Research Information  (pdf)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 80672564055

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
john wenner
Massapequa, US
★★★★★ 2
Fun but not for rough play.
Color: Orange
The ball contented our “golden” Jaxson for about 15 minutes. He then thought it was a regular ball and it’s just a little delicate for a big dog. I just wrote it off as a loss. Great idea but should be more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
A
Verified Purchase
Ang
Waukegan, US
★★★★★ 5
Long lasting charge!
Color: Orange
My 50 pound goldendoodle absolutely loves this ball. It keeps a charge for a long time. It turns off When it’s not being used and we play with it every day.!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
E
Verified Purchase
Emeraldcity
Omaha, US
★★★★★ 5
Fun toy
Color: Orange
My standard poodle loves this toy. It holds a charge for several hours and is well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
V
Verified Purchase
VegasHawkeye
Chelsea, US
★★★★★ 5
Picky dog approved!
Color: S6-muti-color, Color: S6-muti-color
I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!! Seem to work fine in the ChuckIt. As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2025
W
Verified Purchase
William Lovelace
Dallas, US
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

recommand products