Instaflex Reviews – Does This Joint Supplement Really Work?

By: Rob Miller
48 User Reviews
 Fact Checked On: 10-14-2018
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I received my free trial. I wasn't aware I would be billed and on an automatic shipment per month. Is this correct? If so how do I go about cancelling? Thanks so much! -Nancy


It is correct. I searched through the "terms and conditions" and found the information you need:

Unless you cancel before the end of your trial period as specified above (within 18 days after placing your order), you will automatically be enrolled in our Auto-Ship program. We will ship your first 30-day supply of Instaflex at the end of your trial period, and you will be charged $69.99 plus $4.99 S&P and any applicable tax. Thereafter, you will continue to receive a fresh 30-day supply of Instaflex about every 30 days for as long as you stay a member of our auto-ship program. The card you provided when you ordered the trial product will be automatically charged $69.99 (plus $4.99 S&P and tax if applicable) when each new product ships. To cancel future shipments in the auto-ship program, you must call 1-800-436-0920 at least 1 day prior to the date that your next monthly delivery ships.

- Rob

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I am taking one advanced instaflex in the AM, can I take another one in the evening. -Barbara


The recommended dose is 3 pills per day, so I'm sure that would be fine.- Rob

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Did the doctor who created instaflex once state take only one capsule instead of three? -Barbara


Not that I'm aware of, but I'm not sure what you've heard.- Rob

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I am taking instaflex and my bottle says take one a day not 3. Can you tell me why -Charlotte


I checked my bottle and the website, and they both say the serving size is 3 capsules.  I don't know why yours says it's one.  You can contact their customer service at email address:  support@instaflex.com or phone number:  1-800-436-0920.- Rob

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Does it works for old men?! -Hasna ali


There's no reason why it wouldn't.- Rob

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Author: Rob Miller

Supplement Critique

Rob Miller founded SupplementCritique.com over 7 years ago, and has been the chief editor ever since. He has a diploma in Advanced Dietary Supplements Advisor, and worked at GNC for 3 years. He KNOWS supplements, both inside and out. Rob currently resides in Jupiter, FL, with his wife of 4 years.  Learn more about him in his Bio here. Follow him on Twitter , Facebook, LinkedIn, or find him on Google +.

88 comments on “Instaflex Reviews – Does This Joint Supplement Really Work?”

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  1. I just started using Instaflex Advanced. Only a few days in and I feel a little less joint pain; but I am willing to go the 14 days to see if there is a marked difference.

    The box and label clearly states 1 capsule daily, with or without food. Regular Instaflex is 3 capsules daily.

    I will update at the end of the 14 days.
    Reply
  2. I have arthritis in my left knee and was suppose to have knee replacement surgery in Dec. However I canceled because I was too afraid I might get infection and have to have my leg removed.

    I started using Dr. joints Advanced and have been on it for about 3 weeks. Still a lot of pain.

    Having actupuncer on it. Has helped some.

    Can you please help me on what is best. the dr. joint is helping some. I really really don’t want surgery.

    I am 65. Thank you and I hope to hear from you soon
    Reply
  4. I have found that Glucosamine is totally useless..for me. Also the chondroitin.

    But I’m happy to see that you have hylauronic acid, termuric, and MSM, things that actually work. I’ve been disappointed with everything I’ve tried.

    Haven’t ordered it yet, because nothing ever worked…but I’m glad you got rid of the some of the useless crap…like chondroitin..now get rid of glucosamin. The problems is, we need a theraputic dosage, and you guys just don’t have it…because of your limitations with witht FDA. And…last but not least…being automatically charged an insane amount after the sample is sent. People sometimes don’t read the fine print.

    Reply
    1. Hey Chrystine,

      SupplementCritique.com is a review website. We don’t make or sell Instaflex.

      But I appreciate your feedback. It’s helpful for our other readers.

      Reply
  5. I’m 69 years old I have MRIs for both knees,they said need total knee replacements,2 torn rotator cuffs,and just found out I have 4 herniated discs in the cervical area and 2 in the lumbar area,so I am asking can this product help me or am I wasting my time any money on this product so I don’t have to go thru mailing this stuff back because of false promises thanks just want the truth
    Reply
    1. Hey Buster,
      Well, that’s a tough one. I think Instaflex is geared towards people with minor aches and pains, but it sounds like your on a different level.

      You could try it, but I wouldn’t make any guarantees.
      Reply
    1. Hey Kathy,

      SupplementCritique.com is a review website. You’ll need to contact Instaflex directly to change your shipping address.

      Reply
  7. I just received your trial of Instaflex . However , I have spent two hours this evening reading reviews on your Instaflex and none of the reviews mentioned if your product will help a 69 year young active great grandpaw with lower back problems ?

    I am in great shape for my age due to raising two grand boys that play football and baseball . I am 6’2” tall and weigh 198 lbs .

    I have some knee problems and thumb joint problems and have already had both thumb joints replaced 6 years ago and my right hip joint replaced 11 years ago . With e playing college football for WV Mountaineers , motor cross racing and being a mechanical engineer climbing around on big product equipment at a Toyota Automtive plant for 35 years inspecting robotic production equipment .

    But I retired 9 months ago to build drag racing cars as a hobby . Will Instaflex help lower back problems .

    The pain is not serious , according to my doctor ; unfortunately , it hurts pretty bad if I have to stand ” say ” for an hour or longer or lift something heavy the wrong way !

    Looking forward to you reply !!!

    Thanks , Paul
    Reply
    1. Hey Paul,

      First let me say that SupplementCritique.com is a review website. We don’t have any affiliation with Instaflex.

      That said, we’ve found it to be a mixed back. Some people say it works great, while others don’t get any relief from it at all.

      As for back pain specifically, it’s sort of the same thing. Some people get lower back pain relief by using joint supplements.

      Others get no relief at all.
      Rob
      SupplementCritique.com

      Reply
  9. I ordered Instaflex Advanced and received it in the mail. I tried it for 2 weeks as I got the 14 capsules.


    I want discontinue my order as I had problems SO DON’T SEND ME ANY MORE. Take my name off of your list and also my credit card.

    Thank you !


    JANE SCHOEPKE
    105 E 3RD SOUTH STREET
    WENONA, ILLINOIS 61377
    Reply
  10. This product does not work and caused a side effect that required a ER visit. I was also charged 78.94 on my credit card for a order I never placed or received.

    Beware the free sample that you pay only 4.99 shipping triggers a order which was not received or ordered. When I called after discovered the charge I was informed it is on its way and I was charged since I did not call when I ordered the FREE sample.

    If I receive it and send it back they need me to call back and tell them and the will possibly refund my money for something I did not or receive.
    Reply
  11. How do I know which product to take? Between Instaflex and Instaflex Advanced featuring UC 11collagen???

    Which product to choose??

    Reply
    1. Hey Barb,
      I haven’t tested the Advanced version yet, so I can’t say for sure. What I would do is give the original version a shot first.

      If that doesn’t seem to work for you than move up to the advanced version.
      Rob
      SupplementCritique.com

      Reply
  13. where is a scientific review of the results of Instaflex. I would think that Dr Katz should and propably has done such a study but I can find “only” the results of individuals who used the supplement.


    Thanks and greetings

    Alfred Drukker
    Jerusalem
    Israel
    Reply
    1. Hey Sallie,

      Give Instaflex a call to cancel the autoshipment. Their customer service number is 800.436.0920. A one month supply of Joint Advance is $39.95, though you can get it cheaper if you buy multiple bottles at once.

      Rob
      SupplementCritique.com
      Reply
  15. I just ordered the free sample of instaflex, and afterwards, just read that if I do not cancel the order before 2 weeks, that you will send me more and charge me. Is that true?
    Do I need to cancel the order before the 2 weeks or get charged for more?

    Reply
    1. Hey Jo Ann,
      Yep. You basically have 2 weeks to try it, and if you don’t call to cancel they will charge the credit card you used to pay for shipping the full price for the supplement.

      Rob
      SupplementCritique.com

      Reply
  16. I have been taking Instaflex now for 1 week and all of a sudden I realized that I could sleep without any pain in my hips or legs or shoulders. It’s like my arthritis pain is gone.

    Wow. I tried it for my knee, but it has helped with my arthritis.

    How does that work. But one thing I noticed is that I have gained 3 pounds this week.Does it make me gain weight also?

    Reply
    1. Hey Judy,

      I’m glad it’s working for you. There is some anecdotal evidence that glucosamine (which is in Instaflex) can cause bloating and weight gain, so yes, it’s probably related.

      You may need to adjust your diet and/or exercise to compensate.
      Rob
      SupplementCritique.com

      Reply
  17. I have worn knees from being a plumber, I just found this product and will be trying it out. but I buy thru vitamin world and you can buy the 90ct bottle buy 1 get 1 free for $69.00, that’s 2 bottles for $69.00 thought i’d let you know, come back with a review after I try my 2 bottles
    Reply
    1. Hey Salve,

      I’m not seeing where they say it’s been studied at a major university.

      Rob
      SupplementCritique.com
      Reply
  19. If this is such a great product why is it being sold like snake oil they keep sending the product after the trail bottle and keep billing your credit card contacted them about the $40 $ charge they told me and found the charge was really $70
    Reply
  20. To Rob; If this product causes drowsiness, can it be taken at night? Might also help with insomnia.

    Interested to see your reply.
    Reply
    1. Hey Ellen,

      I’m not sure where you’re seeing that it causes drowsiness. The recommended dosage is 1 pill taken 3 times a day.


      Rob
      SupplementCritique.com
      Reply
  21. All this info seems to be about back, legs, hips, & knees. What about shoulders?

    I have extremely painful osteoarthritis in both shoulders, & others can hear the grinding in my left shoulder when I move it in certain ways. I’d give just about anything to significantly alleviate the pain (I take glucosamine & chondroitin daily, occasionally take acetaminophen, but am leery about damaging my liver.

    Heat also helps quite a lot, as does limiting the way I use my shoulders…) Would Instaflex help me – safely? Thanks for listening!

    Reply
    1. Hey Toby,

      It can work for your shoulder as well as for any other joint. But it seems to be the case that Instaflex works really well for some people and not at all for others.

      Hopefully, you’ll belong to the first group.
      Rob
      SupplementCritique.com

      Reply
  22. Tried sample of instaflex and it gradually started to work.when the sample ran out,I doubled up on osteo biflex until the next bottle came.(about 5 days) within 4 days I noticed a considerable improvement in what was just short of agonizing pain in left knee an left hip.when I called the company,I told them that I liked the product but asked for a better price. we’ll see if they do this.also the customer service guy (Steve)gave me his ext.number and asked me to call him by 7/8 with the price and the name of the company (GNC)that i want them to match.this could work for me because my insurance co.sucks and my dr.wants me to continue toughing it out.
    Reply
  23. Hey there, wondering if is OK to take it with empty stomach at the same time that I am taking medication for thyroids?
    Can anybody answer me please?


    I would love to try it.
    Reply
    1. Hey Mendes,

      Whenever you’re taking prescription medication, it’s recommended that you check with your doctor before taking supplements.
      Rob
      SupplementCritique.com

      Reply
  24. I’m a 54 yr old lady and have been taking instaflex for almost a year because I have a knee problem it has worked for me it took the pain and stiffness like about 80 percent off and the only side effect that it gives me is that when I take the pills it gives me like a heartburn but I think because of that ingredient capsin which is like the red chili pepper other than that heartburn goes away like in 5 minutes and then I’m OK but I do take them 3 times a day instead of all three at once and I also take them with a meal and they still work for my pain and stiffness I did also noticed that when I take them with a meal I don’t get that heartburn
    Reply
  25. I ordered the sample Instaflex on 4/10 14.
    I am not using this product . I have seen too many reviews that has me discouraged from using it including my doctor.

    I am a diabetic and have osteoarthritis with very much pain. I am
    within the period of canceling Instaflex.and you can consider it cancelled right now..

    You sent another bottle and the trial was not even over yet. This is not fair.

    I have already spoken to my credit card company about charging any more to my account… Since you have sent me another bottle I will send it immediately back to you. Please do not send me any more INSTAFLEX.


    Thank you!.
    Reply
    1. Hey Jocelyn,

      This is a review site. We don’t sell or distribute Instaflex or any other products. You’ll have to get in touch with company you ordered from. Their customer service number is 1-800-436-0920. Their email is support@instaflex.com. Make sure you contact them as soon as possible for your best chance at making sure everything is taken care of.

      Rob
      SupplementCritique.com
      Reply
  26. 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
    Reply
  27. 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.
    Reply
    1. Hey,

      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.


      Rob
      SupplementCritique.com
      Reply
  29. 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.

    Reply
  30. Hi

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

    How can i get this india?
    Reply
    1. Im not sure if they ship to India, you would have to check with them.
      Rob
      SupplementCritique.com

      Reply
  31. 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
    Reply
  32. 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.

    Reply
  33. Hi!

    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.

    Reply
  34. 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.

    Reply
  36. 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.

    Reply
  37. 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.
    Reply
  38. 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?

    Reply
  40. 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.

    Reply
  41. 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.
    Reply
      1. 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….
        Rob
        SupplementCritique.com

        Reply
  42. 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.

    Reply
    1. 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.

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

    Reply
  45. 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.
    Reply
  47. 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.
    Reply
  48. 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.

    Reply
    1. 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.
      Reply
  49. 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???

    Reply
    1. 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.


      Rob
      SupplementCritique.com
      Reply
  50. 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.

    Reply
    1. 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.

      SupplementCritique.com

      Reply
  51. 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.

    Costas

    Reply
  52. 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.
    Reply
  53. 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.
    Reply
  54. 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.

    Reply
    1. 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?

      Reply

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