Growth Factor 9 Review – Proven to Work?

By: Rob Miller
5 User Reviews
Fact Checked On: 1-7-2022

Home » Hgh Supplements » Growth Factor 9 Review – Proven to Work?


How It Works
Pros and Cons
Stacking With Other Products
Comparing With Other HGH Supplement
Comparision To Other Testosterone Boosters
User Reviews

1. Growth Factor 9 Overview

HGH has for quite a few years now been thought of by many as a sort of “fountain of youth”.

The media has done a really good job of glorifying it’s benefits, as is apparent in numerous reports like this one:


Synthetic HGH in the form of injections was used by athletes to improve their performance.

It worked so well it was quickly banned by the World Anti-Doping Agency.

hgh wada ban

This doesn’t mean that it’s illegal for ANYONE to use it, just athletes competing at a high level.

With that said, real HGH injections aren’t cheap!

hgh injections cost per month

Enter HGH releasers, and in particular, Growth Factor 9.

But, is this too good to be true?

Read on to find out whether Growth Factor 9 is the supplement you’ve been waiting for.

Update 1-7-2022

If you’re looking for the best HGH Releaser on the market, check out a product called HyperGH 14X.

hypergh 14x

It’s by far the most effective HGH supplement I’ve ever tested, and I’ve tested dozens.

Click Here to read my full review of HyperGH 14X.

2. What is Growth Factor 9 (GF9)?

What is Growth Factor 9 (GF9)

The idea behind supplements like Growth Factor 9 (GF9) is that they encourage your body’s own natural production process for HGH to kick into high gear.

How does it do this?

It’s all about improved sleep quality.

In men, approximately 70% of the days HGH release happens during sleep.

When you’re young, you have a huge amount of HGH being released.

Just like everything else with age, that amount starts to dwindle down as the years pass by.

hgh decrease with age

Growth Factor 9 aims to change all of that by using a proprietary blend of ingredients that helps give you a GREAT nights sleep.

As a result, the reported benefits of Growth Factor 9 include:

  • Greater endurance and stamina.
  • Increased lean muscle mass.
  • Faster recovery times after working out.
  • Deeper, more restful sleep.
  • Elevated mood

Has this been scientifically studied?

There is a lot of anecdotal evidence that Growth Factor 9 (GF9) and others like it can work, but until now, there has been no scientific evidence at all.

Growth Factor 9 changes that by having undergone a clinical study that showed a 682% increase in HGH levels.

The Science Behind Growth Factor 9

3. What Do The GF9 Reviews Say?

Looking around on sites like and Vitamin Shoppe, you get a sense that Growth Factor 9 REALLY does have some potential.

The average star rating on is 7.2 out of 10 stars, which is NOT terrible.

Reading through some of these reviews makes me wonder if it’s right for everyone. Most say it does a pretty good job at helping speed up recovery, but some people are literally calling it a “complete waste of money”.

growth factor 9 real review

growth factor 9 complaints

Others are calling it the best supplement that they’ve ever taken.

4. Growth Factor 9 (GF9) Ingredients

Growth Factor 9 (GF9) Ingredients

Growth Factor 9 is primarily made up of amino acids which when used in this combination are a precursor to HGH, thereby stimulating the pituitary gland to release more HGH than it would on its own.

The actual ingredients are:

  • L-Argnine HCI
  • L-Lysine HCI
  • N-Acetyl L-Cystein
  • L-Glutamine
  • Oxo-Proline
  • Schizonepeta Powder

A double-blind placebo controlled test was performed on Growth Factor 9. The information given about the test is a little brief, but from what I can gather, it included adult participants of all ages and both sexes, and the results were that 120 minutes after taking Growth Factor 9
(GF9), HGH levels in blood had risen by 682%.

One thing that you do want to take into account however with this product is that you can purchase the first four ingredients all on your own as individual products.

So for the higher price point that this product sells for, you are primarily paying for Oxo-Proline and Schizonepeta powder, both of which don’t hold extremely powerful scientific research behind them and don’t appear to provide worthwhile effects.

The other ingredients however, do hold some promise.

L-Arginine in food

L-Arginine is an amino acid that will help to boost the level of nitric oxide production in the body, which can help to increase blood flow and boost your workout performance.

It can also when the right conditions are provided, help to increase the HGH release by reducing the production of a substance called somatostatin, which inhibits growth hormone.

Studies are mixed however on the HGH boosting abilities of this amino acid, with some saying it actually does the opposite.

Still, you will find it in many products, such as HGH stacks, pre-workout products, as well as sold on its own.

L-Glutamine is another amino acid that’s quite well documented and can help assist with improving your immune function.

This then means enhanced cell repair and recovery, allowing you to get back into the gym to train again.

With ongoing high intensity training, your L-glutamine levels will drop, so adding this supplement can prove of benefit.

Once again however, you can purchase it all on its own for a very cost effective price.

Finally, N-Acetyl L-Cysteine is another ingredient to take note of as it does prove beneficial, but unfortunately not in terms of boosting HGH.

Instead, it can help to reduce the level of oxidative damage that occurs during intense training, boosting your recovery ability.

So consider it – but don’t think it’s going to work HGH boosting miracles.

So for those who are on a budget, you may be able to see similar results if you purchase the first four supplements individually and just stack them with each other.

Unfortunately as no dosage information has been listed on Growth Factor-9, but rather, it’s listed as a proprietary blend, this makes it hard to know precisely how much of each of those ingredients to take.

5. Growth Factor 9 Pros and Cons

Advantages of GF9

Advantages of GF9

  • It’s been clinically tested.
  • The retailer sites are loaded with favorable Growth Factor 9 reviews
  • It doesn’t involve injections or synthetic anything.
  • Some users who experience joint pain may find that subside while using Growth Factor 9
  • Appears to work especially well for men over 50 to regain energy they previous had from reading through customer reviews
  • Some users report their skin looks healthier and younger than it has in years.
  • May assist with improving sleep quality and/or duration.
  • Most individuals report no serious side effects from using this product.

Disadvantages of GF9

Disadvantages of GF9

  • It’s expensive (though not as expensive as injections).
  • There are plenty of negative GF9 reviews from customers who state that it had no effect.
  • Even for those who do see results, in some cases it can take quite a few months of consistently using the product to see results from it.
  • Some users report it can make them feel more aggressive and angry
  • If you take these pills in the morning, you are advised to not eat for two hours following that, which can be problematic for many who need a good breakfast meal.
  • This product does not have a medical endorsement, so you cannot be 100% sure of its safety

6. Stacking Growth Factor 9 With Other Products

Stacking Growth Factor 9 With Other Products

Because of the fact this product is quite unique in that it primarily targets only increased growth hormone levels, this allows you to stack it quite readily with any other product you wish.

Protein powder, pre workout products, post workout products, and most testosterone boosters will all be fine paired with Growth Factor-9.

The only other products you may wish to not pair with GF9 include others designed to also increase growth hormone.

As this is a powerful product to start with, you should not have to worry about stacking it with any other product with the same goal.

7. Comparing Growth Factor 9 With Other HGH Supplements

Comparing Growth Factor 9 With Other HGH Supplements

Speaking of other HGH supplements, how does GF9 compare?

Questions should be raised as to how much more powerful it is compared to more basic growth hormone booster products.

Chances are it is more powerful due to the addition of Oxo-Proline and Schizonepeta powder, however you will have to decide whether it’s worth justifying the increased cost.

It would seem this product is very powerful with the 682% increase it totes, however take note that that study is not actually referenced, so we aren’t quite sure if it really exists.

This in itself is questionable.

One additional thing to note is that this product does have a relatively shorter ingredient line-up list compared to some other products on the market, but don’t let that fool you.

Very often those with long ingredient lists simply contain more fillers and less active ingredients, so this often isn’t a good thing.

There’s definitely no question that this product has numerous positive reviews from those who have seen results with it, but with the price tag it comes with and the fact you may need to use it for multiple months to start seeing benefits, you’ll need to think hard about whether it’s an investment you’re willing to make.

8. Growth Factor 9 Compared To Other Testosterone Boosters

Growth Factor 9 Compared To Other Testosterone Boosters

Another question you might be wondering about is are you better going with a growth hormone product like Growth Factor 9 or opting for a pure testosterone booster.

While both have the same objective – to help you gain lean muscle mass and boost your strength, keep in mind that Growth Factor 9 will cater more towards aging men who are also trying to slow down the process of aging and won’t have as strong libido boosting effects.

You should still notice some benefits, but they won’t be quite as noticeable as what you’d experience using a testosterone booster.

9. How Should I Take Growth Factor 9?

How Should I Take Growth Factor 9

Growth Factor 9 (GF9) is a daily supplement that you must take on an empty stomach.

This most likely means that you both take the 4 capsule dose first thing in the morning and wait 2 hours before eating breakfast, or you take it before bed, making sure that you haven’t eaten in the 2 hours prior.

It’s also important that you use Growth Factor 9 in conjunction with a healthy lifestyle for optimum results.

Why I Don’t Think This Is A Good Idea

why you shouldn't take Factor 9

First, this is problematic because you will have the greatest natural growth hormone release when you first go to bed, not first thing in the morning.

So this product is not capitalizing on that. Second, waiting 2 hours to eat upon waking is a great way to potentially put your body in a catabolic state, moving you away from your goals, not closer.

Especially if you are planning a morning or lunch workout, skipping breakfast like this would be completely unadvised.

Your body needs fuel upon waking, so by using this product, you’re robbing it of vital nutrients. All the potential ‘good’ this product does is then offset by the harm you do from not eating.

So for this reason, you may want to reconsider utilizing this product.

10. Where to Buy Growth Factor 9 content/uploads/2014/04/general nutrition

You can purchase Growth Factor 9 at GNC or online. The 120-count bottle retails for $99.99 and will last 30 days if used as directed.You can find it a little cheaper, so make sure you look around.

Also note that some stores do state that it’s not available to Canadians, however if you live in Canada, you can find it on other websites to be shipped to your area.

11. Conclusion content/uploads/2014/04/general nutrition center

It’s encouraging to see that the research is beginning to take place regarding how well HGH releasers do or do not work.

However, I’m a little skeptical about this study because while they do give some information about it, they don’t cite the actual study, and I haven’t been able to find it referred to anywhere else.

Something like this, if it were legitimate, would be big news, I would think.

In general, such bold claims can often point to a product that is more bark than it is bite.

Have You Used Growth Factor 9?

Leave Your Review Below!

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User Reviews

Have you used this supplement?

Hgh's Review

By Hgh,  Mar 1, 2017

I have been taking this product for about 1 week. Already I have noticed a gain in focus and recover time.  I take two in the morning when I wake up two hours before breakfast and two after my last meal before bed. I have also noticed a slight gain in strength and in stamina.  But yet again this isn't a magic pill you can't take it and sit around and wait for it to work. You'll just waste your money.  Nothing is going to happen unless you put in the work. In the gym and on the diet.  Anyone can work out for an hour a day it's what you put into your body the other 23 hours of the day.

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18 out of 19 people found this review helpful.

Mike h.'s Review

By Mike h.,  Jul 12, 2016

I have been using Growth Factor 9 for about 2 months. I have tried most test boosters on the market but with GF-9 I really see results in the form of solid muscle mass gains, especially in my biceps and triceps, lower body has gained mass too.

Was this review helpful to you?
9 out of 10 people found this review helpful.

Michael hollingsworth's Review

By Michael hollingsworth,  Oct 19, 2016

I have been taking Growth Factor 9 for about three months. I take it right before I go to bed around 10:30 PM.  I sleep very deep and it has increased my muscle mass tremendously. My 15 1/2 biceps quickly grew to 16 1/2 inches!  I'm impressed.

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8 out of 10 people found this review helpful.


By Zack,  Aug 16, 2017

I have been in and out of the gym many times in my life and I have tried plenty of supplements along the way. This was the first supplement that I took that I believed gave me good results.  I've had huge gains in the first three months. My husband actually pulled me aside and asked me if I was using steroids!  It seems silly but we actually had that conversation. I'm very pleased with the results, and of course, individual results may vary.  People I know tried things and they worked for them but not me. You have to find what your body responds to, it's that simple.  As a bonus, my sex drive increased drastically!

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2 out of 4 people found this review helpful.

Works For Me. you have to be consistent…

By Nic,  Oct 30, 2022
In Short: I would recommend this to a friend.

I think most people who give any product negative reviews don’t follow instructions and just rely on one thing alone 🙂

Ive been using it every morning before my workouts . Im used to working out in a fasted state so the 2 hour wait to eat is no issue.

I got bloated due to shutdown and at 43 found it really hard to go back to my pre shutdown levels.  When i get fat, it’s all on my flank area. Which makes shirts stick to that area creating an unappealing aesthetic regardless of shirt size.

While sticking to a consistent routine and taking these pills, my shirts are framing me perfect again.  Flanks and overall body fat has gone down. I can see muscle tone.  I have the energy to get through cardio and weights.

While consistency gets you there regardless, these pills noticeably accelerated me there.

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Check Out My Top Choice For HGH Releasers Here - HyperGH 14X

Ask A Question

User Questions and Answers

I eat dinner 5pm everyday.Next I go to bed around 8pm. Can I take the capsules, then. -Ingrid

That would be perfect.- Rob

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13 out of 13 people found this question helpful.

Should I work out directly after taking my 4 pills? Also, after taking my 4 pills can i drink my N.O. Xplode drink and then work out? -Clay

Since you work out in the morning, you'd be better off taking your pills before bed, which is the alternate dosing recommendation on the package. Just make sure to wait 2 hours after you eat so you're taking your pills on an empty stomach.- Rob

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9 out of 10 people found this question helpful.

Growth Factor 90 male enhancement, is there ANY substance of truth to this supplement? It has a 3 year money back guarantee that has my curiosity? -Eric

I haven't used it myself, but the ingredient profile is decent and there are plenty of favorable customer reviews.  I haven't seen anything about a 3 year guarantee. In fact, on the Novex Biotech website, they mention a 30 day guarantee.- Rob

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8 out of 12 people found this question helpful.

10 years ago I had testicular cancer .Would Growth Factor 9 be safe for me to take? -AL

It would as far as I know, but if you have concerns, you should check with your doctor.- Rob

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4 out of 5 people found this question helpful.

Are there any prescription meds that GF9 will interact with? A friend of mine bought this and takes prescribed medicine and is afraid there might be bad interactions. Thank you. -Kathleen

As with any supplement, your friend will have to consult with their prescribing doctor to see if there are any contraindications. He or she will be able to tell you.- Rob

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1 out of 1 people found this question helpful.

Author: Rob Miller

Supplement Critique

Rob Miller founded 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 +.

14 comments on “Growth Factor 9 Review – Proven to Work?”

Leave A New Comment

  1. Why would anyone spend that kinda money on a product that ‘MAY’ work when they could spend similar cash on buying ‘products’ from an underground lab which are more likely to work ? People need to get off their ‘high horse’ about AAS and educate themselves a bit .

    Don’t fall for these clever TV scams .
  2. I have been taking this product for about 1 week. Already I have noticed a gain in focus and recover time.

    I take two in the morning when I wake up two hours before breakfast and two after my last meal before bed. I have also noticed a slight gain in strength and in stamina.

    But yet again this isn’t a magic pill you can’t take it and sit around and wait for it to work. You’ll just waste your money.

    Nothing is going to happen unless you put in the work. In the gym and on the diet.

    Anyone can work out for an hour a day it’s what you put into your body the other 23 hours of the day.
    1. Hey Shirly,

      I’m not sure. When you take prescription medication, you should check with your doctor about whether or not a supplement you’re thinking about taking will interfere or cause issues.

  3. I’ve used Factor 9 for three years and have a 27 year old well known model as a GF.. let me say no more !!! Except her dad is younger than me… don’t tell him that, lol.

    One more thing, Novex, Biotec should pay me for this comment…
    1. Hey Robert,
      Haven’t really tried / tested YOK3D yet, so I can’t comment on that one. However, as far as Growth Factor 9 yeah you should take it first thing in the morning on an empty stomach.

  4. Who sent my mother this magazine, it had to be solicited by someone.. I need to know now!

    Or im retaining an attorney… All you gotta do is tell me who solicited this, and all will be ok….
    1. Hey Dale,

      This is a supplement review website. We don’t send magazines or products or anything of the sort.

  5. I want the refund of the $93.95 deduct from my account today. I do not want your product and I never signed up so that you can keep taking my money every month.

    Thank you
    1. Hey Daramola,

      It sounds like you may have signed up for a free trial and got automatically enrolled in a monthly program. We are not affiliated with any of these products and don’t recommend them.

      You’ll have to contact the company you purchased from directly. If it was Growth Factor 9, their number is 800-530-3071.

  6. I guess that I’m one of the people that Growth Factor 9 didn’t work for. I just didn’t feel that it was doing much if anything for me when I took it and got much better results when I took Somatomax and Secretagogue Gold which cost less too.

  7. After approximately 10 days, I actually felt this supplement do something no other supplement every did–made me feel healthy. Not only was I getting restful sleep, waking refreshed, motivated to work out or de-clutter my life; for the first time in years I felt my muscles were doing the work my bones and joints used to!! In fact, my osteoarthritis pain and limitations were no longer an issue.

    As a night shift nurse, I am able to pull a 12 hour shift, followed by a 1.5 hour work out at the gym, and go to sleep without feeling wired or exhausted; my appetite is reasonable without craving carbs/sweets or excessive amounts; stress is manageable; after one month, I lost 2″ overall; I feel about 10-15 years younger. As a result of feeling this significantly better, I also started my husband on this stack (GF-9 and a 8 wk cycle on/off P6 Extreme) and he, too, experienced the same benefits.

    I’m so happy with this product, I recommend it and can’t imagine going a day without it.

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