TriFlex™ Fast-Acting | GNC

TriFlex™ Fast-Acting


Item # 304011



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Size: 120 Caplets

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Product Information


  • Improves joint comfort & stiffness in as few as 5 days*
  • Clinical-strength doses of glucosamine/chondroitin & boswellia plus turmeric
  • Soothes achy joints, promotes mobility & flexibility*
Feel better and get moving - fast! TriFlex™ Fast-Acting has clinically proven ingredients for joint health.

APRESFLEX® - Features ApresFlex®, a potent boswellia serrate extract, which is clinically proven to support a 7 times greater improvement in joint comfort, as well as improvements in joint stiffness and function, in as few as 5 days. It is thought to work by targeting pathways related to your body's natural anti-inflammatory response.*
GLUCOSAMINE/CHONDROITIN - Provides 1500 mg of glucosamine and 1200 mg of chondroitin, clinical-strength doses for daily, long-term use to support joint health.*
AND MORE - Also includes MSM, which is an important component for joint cartilage, and turmeric.
For a complete joint health solution, add TriFlex™ Joint, Bone & Muscle to your regimen. It has ingredients clinically studied to support healthy bones, muscles and joints.*

Label (click image to enlarge)


As a dietary supplement, take two caplets twice daily, preferably with meals.
CONTAINS: Crustaceans (Shrimp)


Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition. Discontinue use two weeks prior to surgery.

Other Ingredients

Cellulose, Crospovidone, Magnesium Stearate Vegetable Source, Titanium Dioxide (Natural Mineral Whitener), Polyethylene Glycol, Silica, Talc, Riboflavin Color
Distributed by:
General Nutrition Corporation
Pittsburgh, PA 15222

Nutrition Facts

Serving Size  4 Caplets
Servings Per Container  30

Amount Per Serving     % DV

Sodium 130 mg   5%

Glucosamine Hydrochloride  1500 mg   **
Chondroitin Sulfate, Sodium  1200 mg   **
Turmeric Root Extract (Curcuma longa)(95% Curcuminoids = 95 mg)  105 mg   **
ApresFlex® Boswellia Serrata Gum Extract (20% 3-0-Acetyl-11--Keto Beta Boswellic Acid = 20 mg)  100 mg   **
MSM (Methylsulfonylmethane)  50 mg   **

** Daily Value (DV) not established.


4.2 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Initially, It seemed to work. But it's not working now.
September 20, 2017
4 months ago
Good product
It helps a lot with my joints specially after my running sesion of 5K or 10K
August 23, 2017
Helping my joints considerably
I have had chronic knee pain for years, and I decided to try this on the recommendation of a GNC employee. I have used it for 6 months now and I can tell a huge difference in my joints, especially as active as I am. I will continue to use this as part of my daily regimen.
August 3, 2017
This supplement helps our joints to funtion as close to normal as possible making us feel better.
August 3, 2017
3 months ago
Reduce pain for long run
Help me alot for reducing leg pains
July 12, 2017
3 months ago
Discolored pills
I just purchased Triflex for the first time. When I opened the bottle half of the pills are white and the other half are yellow.

Is discoloration normal and safe to take?
July 9, 2017
Love it. I works great
July 6, 2017
3 months ago
Life Changer
I started taking this 8 days ago. My neck pain is gone, my elbow pain is gone and my knees are much better. I still have a little soreness but I can get up and walk without limping for the first few minutes. I have terrible arthritis and this supplement has been a life changed for me. Thank you GNC!!

Cindy A.
July 5, 2017
Took it for about 2 was. Didn't,t notice improvement. Pill too big. Stuck in throat. Cut pill in half & the cut edges scratched throat. Do you want them back?
June 20, 2017
5 months ago
Response from GNC
Jack, Please accept our apology for the experience you had with the Fast Acting Triflex. We want you to be fully satisfied with every item that you purchase from If you are not satisfied with an item that you have purchased, you may return the item within 30 days from the order date for a full refund of the purchase price, minus the shipping and handling charges. The item must be returned, unused or used, in good condition, in original boxes (whenever possible), and with all paperwork and accessories to ensure full credit. You may also want to visit our your local GNC store and speak to one of our associates who can find the best product for your needs
June 21, 2017
John TStaff
Effective and reliable.
It took about 10 days before I felt the most relief. I do dips and push-ups now with just a twinge occasionally. I'd say my shoulders are 85% better than before I started using Triflex.
June 19, 2017
4 months ago