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Instaflex Reviews – Does This Joint Supplement Really Work?

By July 18, 2011 47

Reviewed By:
Rob Miller
3.0 OUT OF 5.0
User Reviews: 15

Read User Reviews

Average User Rating:
3.2 out of 5 STARS

Lately I have been noticing tons of ads on the and other media sources about a product called Instaflex, which is a joint support therapy designed to help heal damaged joints.  Being an avid beach volleyball player with tons of joint problems, I decided to review this product personally for my visitors.  After some extensive research of the ingredients, side effects, consumer reviews and testimonials, as well as some of my own personal testing, I decided to report my findings of the results that men and women across the US have experienced with Instaflex.

How does It Work?

According to the companies official website, instaflex works by using a combination of all natural ingredients such as glucosamine, Methylsulfonylmethane, Hyaluronan, Termeric Root Extract, and Boswellia Serrata Extract.  I have taken my fair share of joint supplements, and I have noticed that glucosamine is listed in practically every one.  But what exactly does glucosamine do?  For that, I decided to do a little bit of research to find out what this extract actually is.

The official site ( states that this extract “aids in resisting cartilage degeneration, diminishing joint pain, and preventing functional impairment”.  For all intents and purposes, this is a fact that has been proven in numerous clinical studies, and the fact that this product contains glucosamine proves that it may indeed work.

Risk Free Trial

Right now, everywhere I look I see free trial offers of Instaflex available on their main site.  The trial lasts 14 days (actually 18 days from the date or order),and if you are unsatisfied with the product you have to send it back to redeem a refund.  I have ordered several of these types of products in the past, including Megamagnum and prostate forte, and you need to make sure that you cancel your trial before the date is up.  If you don’t they will continue to charge you on a monthly basis, AS MUCH AS $70 A MONTH!

This is the same as their Testerone Boosting supplement Nugenix, which is made by the same company.

User Reviews of Instaflex

There are mixed reviews of Instaflex on a wide variety of sites, including Amazon, ebay, and others.  While some say it is great, others say they get better use out of a dose of advil or tylenol as opposed to this product.  By and large, the majority of the reviews are positive, with many people that have played competitive sports for years saying that it has been a miracle pill for them.

We received a few bottles of Instaflex, and had some friends test it out for it’s effectiveness.  Here is a review we received:

“Hello everyone my name is Heather,  I play allot of beach volleyball and as I have gotten older I noticed while sitting in between volleyball games I would start to get stiff.  In my younger days I could sit in between games and feel just fine but not anymore.  I looked for a supplements that would help with this and that is when I tried Instaflex.

I wanted something to help with the stiffness and my mobility on the volleyball court.  I have been taking Instaflex for 3 weeks now and I have noticed a real difference in how I feel.  The stiffness has all but gone away and my mobility on the court has increased.  I would recommend this product to anyone that has joint discomfort or stiffness.”

Heather Gervais, Stuart, Florida

Dosage and Instructions

According to the bottle, you are supposed to take 3 capsules once daily on an empty stomach.

Where Can You Buy Instaflex?

Instaflex Joint support is available at a numer of online retailers, as well as physical locations nationwide. If you choose not to participate in their free trial, you can find it in GNC for a price of $50, which is a $20 discount as opposed to be enrolled in their autoship program.

We also searched around in local stores such as Walmart, Target, Rite Aide, Walgreens, and CVS, but could not find it for sale in any of these stores.  You can buy from a number of online merchants, including and

My Personal Results With Instaflex

I finally got a chance to try Instaflex out myself, and wanted to report on my results to you guys.  As you know, I decided to get the trial package of Instaflex, which was about $4.95 for shipping.  Knowing that this was only a trial, I told myself that If I did not start seeing immediate benefits from the product that I would call and cancel immediately.

After just a few days, my order arrived in the mail and I started taking it right away.  I have some pretty bad joint pain as a result of playing way too much beach volleyball and basketball, and it has by far been affecting my ability to play.  The one thing I noticed about Instaflex was that it started working within the first few days.  I noticed that I was taking less and less advil to try and get rid of my pain, and walking down the stairs first thing in the morning was no longer a “chore”

How this can work for someone that has more intense joint pain, I don’t know, but I do know that for the limited time I was taking Instaflex, I was feeling great.

So Does Instaflex Really work?

While glucosamine supplements have been used for a long time for all natural joint relief, there is little evidence to suggest they are “natures cure” to joint pain.  After taking Instaflex for the full trial period, it seemed to start to lose it’s effectiveness, but without using it for a full month, I can’t really determine it’s true effectiveness.  I will continue to update this blog post once I get a fresh supply and take it again, but this time, for a full month.

Be Sure To Leave your Review and Rating of Instaflex Below!

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Instaflex Reviews – Does This Joint Supplement Really Work? SKU UPC Model

5 out of 5 Stars

Feb 10, 2014 by Renee Zak


Instaflex Review

1 out of 5 Stars

Oct 21, 2013 by Edward Howard

Just received my trial bottle of Instaflex today and when I looked at the ingredients list, right at the bottom of it, was “Crustacean Shellfish”, which I cannot take. I don’t remember seeing that in the ad, so now I not only can’t take it, I am out the $4.99 I spent for shipping cost. If there wasn’t a warning in the ad, maybe there should have been.

5 out of 5 Stars

Jun 10, 2013 by larry finn

I am 84 years old. I can now walk as well as I could years ago. I’m feeling great. I give the credit to Instaflex. It has made a difference in how I feel overall. I have had various problems with my knees since my early 20′s . I was once told that I would have to do something about the knees at age 24. I continued to play ball into my 60′s. The knees gave me problems off and on but I muddled through them until a couple of years ago when they really started to bother me walking, climbing, etc. That has now changed ! I almost gave up until trying Instaflex. It is great ! Any 80-90 year old baseball leagues out there ? I’m ready.

5 out of 5 Stars

May 18, 2013 by Rich M.

OK folks, this is my 3rd week update. I have been very impressed with the results thus far, starting at the end of the very 1st week. I have been taking 3 Instaflex upon arising on an empty stomach with 8-16 oz of water.

I have a reminder set on my iPhone to post another comment in late June or July 2013. Good luck everyone! I hope it works for you and if not, I pray that you will find some type of relief for your pain. ~rlm

4 out of 5 Stars

May 14, 2013 by Laurel

I took Glucosamine C/MSM for years with no results. I have severe feet, knee, hip and lower back pain. I live on the 3rd floor at my condo and have had to take my steps one at a time for a few years now. I started taking this … Not the entire dose – just 2 per day and in just a few days I noticed relief. My sister was visiting (she’s had knee replacement and has worse arthritis than me)… We came home and I went up my stairs and it wasn’t until I reached the top before I realized I climbed the stairs normally. Frankly, I was shocked at how well it worked and have no side affects whatsoever. This stuff works great (on me). I gave my sister some and she was shocked how quickly they worked on her too.

2 out of 5 Stars

Apr 18, 2013 by Jennifer

I’ve taken 2 doses (3 Capsules each dose) so far and the side effect I’ve noticed is EXTREME drowsiness! It is not safe for me to drive a car after taking this supplement. I have not noticed any relief yet to my joint pain in the hips. I will continue my trial, but will cancel the auto-ship. If I love it, I’ll pick it up at GNC.

1 out of 5 Stars

Apr 12, 2013 by Paul

Tried Instaflex and it does nothing at all,
except perhaps to make your heels burn,
(only difference I noticed after taking the
capsules). Because the capsules are
filled with herbs they are not enough for
a full grown human. If you use medicinal
herbs, (NOT GANJA), you know it takes
a half cup or so to make one batch of
tea. Instaflex little caps did nothing for me.

4 out of 5 Stars

Mar 29, 2013 by Shannon

I have been taking Instaflex for about 10 days, and I have noticed a significant difference in my joints. After reading some of the reviews, I recalled having lower back cramps after the second day. I can’t say that the pills are related to this but it did send me a red flag. However, that lasted a for 2 days, and I’ve been fine ever since. The stiffness I was getting after sitting is completely gone, and I am more active because I can move without discomfort. I hope these effects last because I feel great!

3 out of 5 Stars

Mar 15, 2013 by JAM

My husband has significant knee and hip pain. He took just one dose and within hours he began to feel relief, and was moving around actively and had incentive to do work around the house. Unfortunately hours later he began to experience itching and pins and needles on the ball of one of his feet which lasted into the next day. The Interflex works, but the side effects preclude him from continuing usage of the product.

1 out of 5 Stars

Feb 15, 2013 by Raj

My Mom took instaflex and it affected her heart beat-by that I mean the number of missed beats went up into the multiple 1000′s/day. She got dizzy and we had to rush her to a cardiologist. At first, we did not fully connect the dots but as soon as she incurred the problem we discontinued Instaflex and soon she became okay. After a few weeks, she restarted Instaflex and the above heart problem returned within a day. It was confirmed. Please be careful whom you recommend Instaflex to.



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  1. Elisa Jed January 23, 2014 at 1:45 am - Reply

    It makes me nervous that it is taken on an empty stomach. Any pill on an empty stomach seems like it would do some harm. I plan on looking more into it. Thanks everyone for the input.
    Elisa Jed

  2. Lisa Scott December 6, 2013 at 9:00 pm - Reply

    I bought the trial offer and am almost through with it. There isn’t much difference in my pain or movement. It didn’t work for me.

  3. MS Vaz October 31, 2013 at 2:34 pm - Reply

    I have high BP can I take Instaflex without any side effects

    • Rob Miller
      Rob Miller November 1, 2013 at 12:43 am - Reply


      I don’t see anything in the ingredient list that would cause problems, but I would suggest you talk to your doctor before taking it. He would know if there are any contraindications with your condition or any medications you’re taking.


  4. B. Taylor June 28, 2013 at 9:32 pm - Reply

    The scam part of ordering products like these is that they all seem to automatically sign you up for future orders that you have to go to the trouble of cancelling. If the product really works, people would obviously continue to order it or purchase from GNC or some other retailer. This is by far the biggest complaint people have. These companies need to stop this unethical practice.

  5. shushil kumar June 20, 2013 at 4:49 pm - Reply


    I want instaflex joint support for mother who is having rheumatic arthritis.

    How can i get this india?

    • Rob Miller
      Rob Miller June 21, 2013 at 1:35 pm - Reply

      Im not sure if they ship to India, you would have to check with them.


  6. everton June 18, 2013 at 7:40 pm - Reply

    I am a 50 year-old male who does yoga and play competitive masters’ league soccer. I tried the sample packet a couple weeks ago and had instant relief from the stiffness and pain which i normally encounter after playing or going up and down the stairs. I definitely recommend the product; probably cheaper to buy at GNC instead of doing the auto order though

  7. julie May 31, 2013 at 4:58 pm - Reply

    Im still trying to decide if this product is worth trying.

    But from some of the above comments I think people need to use common sense and realize:

    1. Not every product works for every person.

    2. Do your research

    3. Don’t be so foolish as to buy something without reading all the information on the website. It states CLEARLY you will be charged 4.99 for the 2 week ‘free trial’ and 69.99 plus 4.99 shipping will be automatically charged every month.

    These people who enter their credit card information then complain they didn’t read the fine print strike me as seriously missing something in simple word comprehension.

  8. Jesse S. March 30, 2013 at 3:51 pm - Reply


    I started the trial a while back and simply forgot about it. I probably tried it on the first day, single pills spread out. Didn’t notice any difference yet.

    Before I knew it, I received 2 additional bottles in the mail, 1 month at a time. I decided to call and cancel since I haven’t been using the product.

    I did explain this to the fellow. He offered to refund me $20 per bottle and hold off additional shipments for 3 months to give me a chance to catch up and advised that I could pop all 3 pills at once in the AM. (Probably the reason why I forgot about the product because I tried to take them throughout the day).

    CS seems to be excellent. I started again today. In fact the above mentioned call was this morning and right before I searched for reviews and came across this page. Lol

    As to my background, I’m compete in Olympic style Taekwondo and also train in Hapkido. My 2nd degree testing for both is in April so the training intensity has increased for the time being.

    I’ve always had left knee and ankle issues when active. I wear a knee brace and ankle brace when sparring. I probably doesn’t help that my techniques to be tested for Hapkido are sitting defense techniques where I’m basically bound at the feet and sitting in Indian position.

    I should be able to notice if there are any signs of relief.

    I just popped 3 pills as I’m typing and boy they smell interesting. Let’s see what happens. Will be in touch. Good luck with your goals, everyone.

  9. gail February 11, 2013 at 5:23 pm - Reply

    Just received 14 day supply of instaflex. I also called to cancel auto ship because of the cost, the associate was nice no trying to sell me any thing else, just asked why I was cancelling. Sent me email confirmation, which I saved, just in case. I’ll let u know in 2 weeks how my knees fell.

  10. Dorohy February 3, 2013 at 6:57 pm - Reply

    I have read about Instaflex but can not get any information if insulin dependant diabetics can take it ?

  11. Blue Pencil January 2, 2013 at 8:23 pm - Reply

    Regarding the pain-relief benefits of Instaflex, you might want to look up the history of white willow bark extract — which apparently is nothing more than the free-range herbal ancestor of aspirin. The Wikipedia page on it mentions a potential for stomach bleeding.

  12. Kat In AZ December 9, 2012 at 2:10 am - Reply

    I have had rheumatoid arthritis since I was 18, and now that I’m closer to 50 than 40, I’m really feeling the pain in my joints from the cartilage being attacked by my RA. I just saw the commercial for this product for the first time and almost went to the website on my cell phone. Thankfully, it was a pain to see the page on the phone, so I went to my laptop and “Googled” Instaflex. I found your page as well, and it’s obviously NOT a paid endorsement, it doesn’t even sound like an endorsement, just an account of what one person tried, as he’s tried other products in the past.

    Thanks to the info on this site, I won’t fall for the “free trial” and if I do decide to shell out the $50 at GNC (pun intended) then at least I won’t have to worry about cancelling the auto-ship mess with the company. I may just go back to using Osteo-Biflex though. It seems to also work and isn’t quite as costly.

  13. Janet December 8, 2012 at 4:31 pm - Reply

    I have been taking instaflexfor almost 2 weeks. Results have been good. I have notice a bitter after taste in many foods I eat. Is this a possible side effect?

  14. mark November 10, 2012 at 2:56 pm - Reply

    This doesn’t sound like a “review”, it sounds more like a paid endorsement. What a crock.

  15. Amin October 15, 2012 at 11:39 pm - Reply

    I used the trial and a $70 bottle. I found the product did not help me and so I called to cancel but the man on line tried to sell some more and discounted it to $29. When I asked to get my money back, he just laughed saying I had surpassed 30 days.
    I think this is a scam.

  16. Dave October 10, 2012 at 2:22 am - Reply

    Why is the trial shorter than the time period recommended for results? Makes no sense to me. I will not get sucked into another of these scams.

    • mark November 10, 2012 at 2:57 pm - Reply

      Exactly Dave. And this site sounds like a paid endorsement.

      • Rob Miller
        Rob Miller November 13, 2012 at 12:56 am - Reply

        How dumb can you possibly be??? Let me quote an exact snippet of this review for you, to make it abundantly clear: “I have ordered several of these types of products in the past, including Megamagnum and prostate forte, and you need to make sure that you cancel your trial before the date is up. If you don’t they will continue to charge you on a monthly basis, AS MUCH AS $70 A MONTH!”

        I literally tell you to be careful about ordering these “free trials”, and your’e telling me this sounds like a paid endorsement….sighs….


        • Dustin January 31, 2013 at 7:10 pm - Reply

          Thank you Rob, I agree with everything you said there and will test this out when I can get to a GNC store.

  17. Kyle September 26, 2012 at 2:34 am - Reply

    A couple corrections I’d like to make. I am a customer service rep with instaflex. You do not need to send back the trial for a refund if you are not satisfied. However if you don’t cancel within the 18 day trial period and are billed, you simply need to call us up and send it back for a refund. Most of the people that you hear about that got “scammed” by us are people who simply DIDN’T READ THE TERMS AND CONDITIONS and weren’t aware of what ordering the trial actually entails, which is a simple two minute call before the 18 days is up if you don’t want to continue. I hope this cleared a few things up.

    • Charlotte Wright March 26, 2013 at 5:07 pm - Reply

      Kyle, I have found instaflex as a company to have good customer service. I spoke with a rep after checking on the product and finding it contained shellfish. The rep confirmed shellfish was an ingredient and honored the promise to cancel future shipments. I suggest people check with there doctor as advised on the bottle. I did not see a warning about allergies on the bottle. This might be somthing your company should add.

  18. amy August 29, 2012 at 2:26 pm - Reply

    I just start taking them let’s see what happen.

  19. Lois Lorenz August 23, 2012 at 11:35 am - Reply

    I am totally against autoship. As soon as i read that, I am turned off and will not submit to anything.!!!

  20. Rick August 16, 2012 at 12:14 am - Reply

    I was going to try this. I went to the web site, but didn’t want to give them my credit card number (been burned before). After reading all these comments, I believe that once again its success is based more on the placebo effect than anything else.

  21. Brian June 19, 2012 at 9:03 am - Reply

    Can i get this product in the UK

    • Rob Miller
      admin June 19, 2012 at 7:36 pm - Reply

      Hey Brian,
      I believe it is only available in the US and Canada.

  22. Mark May 21, 2012 at 3:49 pm - Reply

    I must admit that I have not tried Instaflex but am finding the critiques interesting. I have pain in my hips, back and knees and have been taking glucosamine, chondroitin and MSM as 2 separate pills for the past couple of weeks. So far I am experiencing no relief from my symptoms and am unsure of what to do next other than to continue to lose weight and become more active.

  23. F Urban May 10, 2012 at 9:42 pm - Reply

    Are there not clinical trials required in order to support their claims or am I just being naive? Personal experiences are good but it is difficult to extrapolate to the entire population.

    • John L. February 13, 2013 at 4:16 pm - Reply

      F. Urban: Naive would be my choice. These supplements all have, right on the label/advertisement:
      These statements have not been evaluated by FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
      This is the Congress’s way of enabling drugs to be sold that have neither been tested for efficacy or safety.
      If a product is “not intended to diagnose, treat, cure or prevent any disease”, why would a thinking person spend (in some cases a lot of) money on it.
      The reason is that hope is stronger than common sense. Same reason folks that can’t afford them buy lottery tickets.

  24. Anthony May 10, 2012 at 6:17 pm - Reply

    I started taking Instaflex joint relief supplement last week and I had instant relief after just two days but the only problem is the side-effect, the product makes me extremely sluggish or sleepy. I was taking 3 pills in the morning, I tried then to take 1 pill at 3 times during the? day? but I didn’t get the same same level of relief with that dosage. Except for the sluggish feeling I love the product! Is that sluggish or sleepy feeling normal???

    • Rob Miller
      Rob Miller March 25, 2014 at 1:12 am - Reply

      Hey Anthony,

      Glucosamine, which is one of the main ingredients in Instaflex, can cause drowsiness in some people. While it doesn’t happen to everyone, you may be one of the unfortunate few. Have you tried taking 2 capsules once a day? That may be able to help with the drowsiness and still provide relief.


  25. Kristine March 7, 2012 at 6:48 pm - Reply

    My husband has osteoarthritis terribly and decided to try Instaflex. The trial size is for a two week period, but when we got the bottle it said to look for results in 4 weeks time. The trial time was not enough. We cancelled the $70/month autoship seeing that the product is available in Canada @ GNC stores. He’s been using a Herbalife product called Flex Support, and it has all the same heaving hitting ingredients in the same quantity for 2/3′s of the price of Instaflex. More often than not, good sound nutrition every day plays an important role in joint health.

    • Rob Miller
      admin March 7, 2012 at 8:42 pm - Reply

      Hey Kristine,
      Yeah I totally agree, they don’t give you nearly enough time to try it out and see if it works. Your best bet is to stick with the product you found, and for anyone interested in trying Instaflex I would suggest you just buy a bottle at GNC.

  26. Costas February 24, 2012 at 3:09 pm - Reply

    I have tried years back a combination of Glucosamine sulfate and Chondroitin sulfate pills (500 mg and 400 respectively). This method was suggested by Dr. Jason Theodosakis in his book “The arthritis Cure” published in the late 90s. It worked for me, in fact it was like a miracle, it healed a cracked cartilage in one of my knees in about 1 year of taking these pills. Time passed and I ended up with a kidney stone and enlarged prostate problems. Then by coincidence I read an article that this treatment was creating problems in the prostate. So I stopped. My knee problem was not so serious, so I did not use the two pills for a few years now. This product has many new added products. My gut feeling is that unless there is documented serious research to include all products added and investigate their interactivity, I will not even try something new and with so many unknown substances (to me).
    Best of luck in your choice, this may indeed be something new, but I need more information on the research done.


    • janni August 16, 2012 at 6:43 pm - Reply

      Thanks so much for the reminder about waiting for more research.

  27. carl talbot September 22, 2011 at 6:13 pm - Reply

    Major problem for small amount of Instaflex Users.
    I suffer major back, hip and knee injuries/problems.
    I started with the 15 day sample of Instaflex.
    Within three days of taking Instaflex I started getting cramps in my hands. By the seventh day the cramps were all over my body. My Doctor told me to discontinue the Instaflex and by the third+ week the cramps were gone except for my hands.
    By the fourth week the cramps subsided completely. after searching around I found other folks with the same complaint using Instaflex.

  28. Jerald Glanz August 31, 2011 at 10:44 pm - Reply

    I started getting chondroitin and glucosamine and it cured my joint pain. I saw a new product with tart cherries and glucosamine called Cherry Prime. I located some six days ago online and even found it with free shipping from Fruit Advantage.

  29. A. Kim July 19, 2011 at 11:56 pm - Reply

    Well I don’t play much of sports but I do run almost a marathon every morning and instaflex has really made the joint pain bearing after that easy for me. I first got the joint pain because of my extensive running routine and my friend a doc recommended it so to all those who say its a scam please stop spreading rumors.

    • Iva P. December 12, 2012 at 7:10 pm - Reply

      I don’t understand why you keep running with your damaged joints. Why don’t you stop running and start swimming or any other activity that is easier on the joints?

  30. Rob Miller
    admin May 10, 2012 at 6:32 pm - Reply

    I never personally heard of anyone getting sluggish or sleepy, and they don’t mention it on the bottle. Hey, as long as it works and is not doing anything bad, stick with it!

  31. hans July 15, 2012 at 10:10 pm - Reply

    Check if you have an allergy to shellfish,Gluco-chondroit is made often from ground shellfish

  32. Don Watson November 25, 2013 at 11:44 pm - Reply

    This is in reply to a writer who experiences itching on back, legs, etc. Yes, I have this problem, seems I saw a side effect of Instaflex, could cause itching, any one have this side effect?

  33. janni August 16, 2012 at 6:45 pm - Reply

    “sleepy and sluggish” isn’t exactly good…

  34. Jane October 30, 2012 at 5:38 pm - Reply

    Grace, it sounds to me that you are having allergic reactions to the pills. If the problems stopped when you stopped taking the pills then I would not take them again. Alot of people are allergic to shell fish which most of these pills contain.

  35. Rich M. May 18, 2013 at 7:38 pm - Reply

    OK folks, this is my 3rd week update. I have been very impressed with the results thus far, starting at the end of the very 1st week. I have been taking 3 Instaflex upon arising on an empty stomach with 8-16 oz of water.

    I have a reminder set on my iPhone to post another comment in late June or July 2013. Good luck everyone! I hope it works for you and if not, I pray that you will find some type of relief for your pain. ~rlm

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