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Growth Factor-9 Review - 17 Things You Need to Know

Growth Factor 9 is an amino acid based HGH boosting supplement that promises it is “the safe and natural way to increase your HGH levels up to 682%.” With claims like that, our research team had to dive in to find where this number came from.

It turns out, there is a single, small study (16 people) on which they base this claim. However, even on their website, the company states that “evidence for whether oral amino acids stimulate GH is not clear.”

Indeed. Our researchers also focused their attention on whether Growth Factor 9 has any possible side effects that could be of concern to users. With hours at the keyboard and science in hand, here’s what our research experts found.

Growth Factor-9 can be purchased through their Official Site.

Growth Factor-9 Readers: Click here to find out why Boost is our top choice.

What is Growth Factor 9?

Growth Factor 9 is a supplement that promises to unleash your total performance. Made by Novex Biotech, it is a human growth hormone releaser that claims to boost your physical performance.

This product targets bodybuilders, athletes and anyone who wants to look better physically and build muscle mass.

Growth Factor-9 Competitors

P6 Extreme

How Did Growth Factor 9 Start?

For a company that has been around for 13 years, there is little information available about Novex Biotech, the company behind the GF-9 supplement.

The company headquarters is located in Salt Lake City, UT and in the 5+ years since opening a Better Business Bureau account has maintained a strong A+ rating.


Growth Factor 9 Cost

The cost of Growth Factor 9 is different for each retailer selling the supplement. On the official website, a 30-day supply costs $99. Although you can pay through your Amazon account on the official website, the product isn’t available on Amazon. Free shipping is available on all orders.

Novex Biotech Growth Factor 9 is also sold at GNC for the same price. On Bodybuilding.com, the supplement is sold for $99.21.

Where to Buy

Where to Buy Growth Factor 9

Growth Factor 9 can be purchased at Walgreens, Walmart, Vitamin World, The Vitamin Shoppe, Life Extension, GNC, Jet.com and many other retail outlets. Novex Biotech offers a full money-back, no questions asked guarantee, if you buy Growth Factor 9 and it does not work when you take it as directed.

Growth Factor 9 claims


Growth Factor 9 Claims

There are a lot of claims made about the Grow Factor 9 product.

“GF-9 is the first, and only, an oral dietary supplement that works with your own body to enhance growth hormone levels by up to 682%”.

The company claims to hold science evidence proving that Growth Factor 9 increases the building of lean muscle mass while reducing fat in athletes and bodybuilders.

The improvement of your sleeping patterns, better quality skin, and increased energy levels also have made their way onto the product claims list.

Interestingly, the companies own scientific study says, “evidence of whether oral amino acids stimulate growth hormones is unclear.”

“Unleash Your Total Performance and potential with GF-9, our first and only supplement suggested to support the natural production of HGH in both male and female, young and old.”

While they make this claim, there are mixed reviews from users, and there is no scientific evidence that Growth Factor 9 ‘unleashes your total performance.’


Growth Factor 9 Ingredients

Growth Factor 9 is formulated from the SeroVital HGH blend which has the following ingredients:

  • L-Glutamine
  • L-Lysine HCl
  • Oxo-Proline
  • L-Arginine HCl
  • N-Acetyl L-Cysteine
  • Schizonepeta (Aerial Parts) Powder

Other ingredients include rice flour, gelatin, magnesium stearate, and others.

SeroVital Blend

The HGH supplement GF-9 appears to be a rebadged version of the SeroVital blend. According to the HGH Growth Factor 9 label, it is made with the SeroVital blend.

And, the supplement facts on both labels are identical.

So, what is the SeroVital blend?

SeroVital is supposed to help increase human growth hormone (HGH) when taken orally and combined with regular exercise.

It is also being hailed as the next best thing for its anti-aging properties.

Ever since Dr. Oz endorsed the human growth hormone in 2012, this product has been popular. It claims to help you:

  • Grow muscle and burn fat
  • Speed up recovery from injuries
  • Delay the aging process

Growth Factor 9 ingredients


The amino acid glutamine naturally occurs in our bodies.

It is produced in our muscles, and the bloodstream distributes the amino acids to the organs that need them.

It can help your immune system, the functioning of the gut, and other functions of your body especially during periods of stress.

Glutamine also provides energy to different cells in your body, and it assists in the production of other chemicals in the body.


L-lysine is another amino acid used in the making of medicines and supplements.

It is taken orally or applied directly to the area.

L-lysine is also taken by people to improve their athletic performance.

But, there is insufficient evidence to know whether it works in this way or not, according to the Toxicology Network.


There is currently little known about oxo-proline, which is a glutamic acid derivative.

Research is in progress about the role of oxo-proline in the regulation of neutral amino acid transport.

But, the research is mixed, and studies on animals show oxo-proline may have a negative effect, based on a piece published in the Journal of Biological Chemistry, rather than a positive one, as per the journal Metabolic Brain Disease.

When growth hormone supplements have oxo-proline among the ingredients, it usually comes from glutamic acid.

There have been a few trials of glutamic acid with hypotheses that it has a positive impact on the human growth hormone that your body produces naturally.

According to Clinical Medical Insights: Endocrinology and Diabetes, it is still not known whether oxo-proline has a direct effect on growth hormones or not.


L-arginine is an amino acid needed for the body to produce proteins. It occurs naturally in foods such as dairy products, fish, red meat, and poultry. It is also lab made and used in supplements and medicines. When taken, the body changes L-arginine into nitric oxide, which might improve blood flow.

It’s claimed to have extensive and varied benefits including preventing the common cold, men and women’s sexual issues, and more.


Schizonepeta is a plant also known as Japanese Catnip.

Further evidence is required to prove its effectiveness for specific health issues, and the research into its benefits is mixed, says the Journal of Clinical Pharmacology.

Additional ingredients include Rice Flour, Gelatin, Magnesium Stearate, Microcrystalline Cellulose, Silicon Dioxide, and Titanium Dioxide.

Growth Factor 9 side effects

Side Effects

Growth Factor 9 Side Effects

While there’s no mention of Growth Factor 9 side effects in reviews, there’s a chance some may notice side effects from the ingredients.


Glutamine is likely to be safe for most people when taken in doses of up to 40g a day orally, and 600 mg per kilogram of weight intravenously. Note that the effectiveness of glutamine has not been medically proven, based on information published in The Journal of Nutrition.


According to the journal Metabolism, L-lysine is mostly safe for people. Side effects, however, may include diarrhea and stomach cramps.


L-arginine is generally safe when taken in the short term. A study published in the Journal of Nutrition mentions side effects including diarrhea, bloating, and stomach pain.

GF-9 side effects

N-Acetyl Cysteine

Side effects may include diarrhea, constipation, vomiting, and nausea.


Schizonepeta is generally safe for people when taken in low doses, but may cause side effects at higher doses.

What About the Side Effects of Too Much HGH?

Having HGH levels too high can cause serious side effects including, “diabetes, carpal tunnel syndrome, fluid retention, joint and muscle pain, and high blood pressure,” according to the journal BMJ.

Does Growth Factor 9 Work?

Whether the Growth Factor 9 supplement works, or not, is still open to debate across the industry. Customer reviews are mixed about the results of taking Growth Factor 9. However, something interesting we found: supplements that advertise their products as containing ‘hGH’ are unlikely to contain any real hGH.

Growth Factor 9 benefits

Benefits & Results

Growth Factor 9 Benefits and Results

There is no proof there are any benefits of using Growth Factor 9.

There is anecdotal evidence from customers, but that is a mix of negative and positive Growth Factor 9 reviews.

One of the common negative comments is how expensive it is.

Growth Factor 9 claims its benefits include:

  • The ability to build muscle more quickly
  • Improves your skin tone
  • Helps you sleep better at night
  • Improves your mood
  • Assists you to focus your concentration
  • Can help improve your sex life and libido

In a recent, randomized, cross-over, double-blind clinical trial, men and women between 18 and 70 years of age were recruited.

Subjects were scheduled for two testing sessions a week apart where blood samples were drawn over 120 minutes after consumption of either the proprietary GROWTH FACTOR 9 blend or placebo capsules.

Neither the subjects nor the investigators knew at which session the subjects received the GF-9 blend and at which session they received the placebo. At the end of the study, the samples were tested for serum hGH levels, and the results were independently analyzed.

The results: the GF-9 blend led to a 682% increase in serum HGH levels at 120 minutes, which was significantly above and beyond placebo.

The company does offer a solid money back guarantee if not satisfied with the expected results.  After contacting the company, a customer can return the empty product container(s), along with your full name and address within 30 days of receiving the product. A complete, hassle-free refund (excluding shipping and handling, of course) will promptly be issued.

Details on Growth Factor 9 and Weight Loss

The only information we could find about Growth Factor 9 and weight loss is that its use will “help increase lean muscle mass, reduce body fat.” This is not a supplement you use to facilitate weight loss and is caffeine-free containing no stimulants. It is for athletes and people looking to boost physical performance and appearance.

Growth Factor 9 and weight loss


How to Use (Take) Growth Factor 9

To use the Growth Factor 9 supplement, take four capsules on an empty stomach either at least two hours before breakfast or two hours after dinner before going to bed.

The capsule version of this product comes with 120 in a bottle or 30 servings when four taken per day dosage is followed.

The tropical flavor drink mix recommends user to mix one (1) packet in 3-6 fl. oz. of water and drink entire serving on an empty stomach, either in the morning two (2) hours before breakfast or two (2) hours after dinner before bedtime. Do not eat two (2) hours before or after taking GF-9.

Growth Factor 9 Product Warnings

Warnings are to use only as directed and not to exceed the recommended daily dose. It is not for use for people under the age of 18 and keep out of reach of children.

Do not exceed one (1) serving in any 24 hours. Individual results will vary.

Any Growth Factor 9 Lawsuits?

According to Top Class Actions, a lawsuit was filed against, “Novex Biotech LLC and SanMedica International LLC [for] falsely marketing their human growth hormone (HGH) products, Growth Factor-9 and SeroVital.”

However, the judge dismissed the lawsuit because no evidence proved the claims made by Growth Factor-9 about their benefits to HGH levels were not achievable or accurate, even though no evidence backs the allegations either.

According to Dr. Anthony Dugarte, “the legal implications of off-label HGH or HGH booster use” is to be considered through the majority of HGH supplements contain no HGH at all if a company were to add human growth hormone that would be illegal in the United States and punishable by time in jail.

Growth Factor 9 Alternatives

There are many Growth Factor 9 alternatives. Here are a few:

Reaction GH

The company M Theory makes reaction GH, and it has the science to back its claims. Its ingredients include Tryptophan, GABA, and arginine working together to enhance your muscle building goals or to help prevent aging.

Invigorate HGH

Invigorate HGH was developed explicitly for aging men to support their weight loss and muscle gain, and to promote energy. It also claims to have a sexual vitality complex included in the formula to help increase men’s libido and to help maintain an erection.

Universal Nutrition GH Stack

Universal Nutrition claims its product GH Stack works together with your system to produce natural HGH, instead of just sustaining it in your system.

Does Growth Factor 9 Stand Up Against Competitor?

Growth Factor 9 versus the competition – Here is a head to head matchup:

SeroVital-HGH vs. Growth Factor 9

Sanmedica International company is also based, oddly enough, in Salt Lake City, UT.  They are a nutraceutical maker of “one-of-a-kind” skin-care formulas to improve your lifestyle as well.  Their scientists are continually working to find anti-aging solutions for a better, more Vital Life for their customers.

Marketed as one of the top “anti-aging” supplements ever, the SeroVital HGH claims that “results show that a single oral dose of these amino acids can significantly increase GH Levels after 120 minutes in healthy men and women. Whether these GH (growth hormone) changes persist over a longer duration or have other positive effects is being further examined.”

What Users Are Saying

“I didn’t see any results or affirmative conclusions on their claims. My sleep wasn’t any better. No noticeable muscle gain. I wanted to give it more than one month but for this product being close to $100, I wasn’t going to spend that for a second month if I didn’t see it working in the first month.”

“Hard to tell if its working.”

“Works great! I have seen good gains.”

Bottom Line

The Bottom Line on Growth Factor-9

Are you sitting on the edge of your seat yet? Our interest in Growth Factor 9 leads us to a solid conclusion. We like that it contains a few natural ingredients and that we found reports of positive results. But, we don’t feel entirely comfortable recommending the product because there are far too many negative reviews. Fasting appears to increase human growth hormone better than the supplement.

If it’s time to boost testosterone levels, our suggestion is to go with a supplement with a clinically-tested ingredient list. Check for no harmful side effects and a price that’s easy on your bank account.

One of the products we like the most is called Boost.  Unlike many other testosterone supplements, we found the main ingredient in Boost can help healthy, aging men increase testosterone levels, improve sexual function, reduce age-related symptoms associated with androgen decrease, heighten performance and boost muscle mass

They’re so confident in their product that they’re offering every customer a 2-Week Sample. Plus, they also provide fast and reliable worldwide shipping.

Learn More About Boost »
Growth Factor-9 Review
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What are the side effects of Growth Factor?

Some potential side effects of Growth Factor-9 include upset stomach, bloating and bowel discomfort.

What are the ingredients in Growth Factor-9?

Growth Factor-9 ingredients are l-lysine HCL, l-arginine HCL, oxo-proline, n-acetyl l-cysteine, l-glutamine, schizonepeta powder, rice flour, gelatin, magnesium stearate, microcrystalline cellulose, silicon dioxide and titanium dioxide.

Does Growth Factor-9 work?

There’s information on the official website claiming Growth Factor-9 is effective, but no links to the actual study(ies). You may want to change things up a bit and switch out Growth Factor-9 with a supplement like Boost, which consists of ingredients clinically proven effective.

How much does Growth Factor-9 cost?

Growth Factor-9 costs $99. You receive 30 capsules in each bottle.

How should I take Growth Factor-9?

You should take four Growth Factor-9 capsules in the morning or evening, prior to eating. The company recommends not taking more than four within 24 hours and always on an empty stomach.

Where can I buy Growth Factor-9?

Growth Factor-9 can be purchased using their Official Site.

Does Growth Factor-9 contain synthetic human growth hormone (HGH)?

Growth Factor-9 does not contain synthetic ingredients.

Do you need to exercise on Growth Factor-9?

No, you don’t need to exercise on Growth Factor-9, but the company suggests adding a fitness plan to achieve better results.

Is there a guarantee?

Growth Factor-9 offers a money-back guarantee, but the company doesn’t state the time frame allowed to receive a full refund.

16 Growth Factor-9 Reviews

  • Kaylee

    I didnt know where to find this info then kaboom it was here.

  • Ame

    For me is perfect, diminishing stress, felling great

    • Montana (Editor)

      Hey Ame! We’re glad you had a good experience with this product. Another product you may also like is one called Dietspotlight Burn.

  • Ramesh kumar

    I am taking IGF9 from last 25 days after how many days it will start working

    • Candace (Editor)

      Typically, users experience some sort of results within 6 to 8 weeks.

  • It's awesome !
    Geo (Verified Purchase)


  • It works !
    George (Verified Purchase)

    does what it suppose to!! I feel stronger than ever!!

  • This is fantastic
    Cy (Verified Purchase)

    Kisses! GH 9 is fantastique. No magic bullets or pills anywhere. You get out what you put in. See my earlier comment on this page.

  • Try actually doing some reseach

    This product is awesome, that is if your in the intensive care unit suffering from Sepsis just like the publication said (you all didn’t actually read it did ya, oh hell no). And under those conditions it only worked for a few days, minimally. Come on do a few minutes of research,there is absolutely NO research with healthy people trying to raise their HGH levels over any length of time. Gotta love this though “I use to bench 150, after 2 weeks of GF-9 i can now bench 385” Oh dear god. And monkeys will come flying out my ass.

  • This is the fountain of youth
    Willie gibson (Verified Purchase)

    IV seen a big change in my energy I feel 10years younger my sleeping is better I feel stronger and I’m losing weight because of my appetite has decreased.. I’m taking testosterone with this product together it’s the fountain of youth.. No lie!!

  • Want to try this product
    juan cervantes

    Is it recommended to take Factor 9 testrovax at same time

  • A very good review
    Lee (Verified Purchase)

    Really appreciate the point-blank review of the Growth Factor-9. Your evaluation was similar to what I was explaining to some of my clients. Because your review was simply stated and easy for all to read/understand, I have sent my inquisitive Clients to your site specifically to read the reviews of this and other products on the diet market.

  • Shell

    Been using it religiously for 4 months now. 4 capsules early in the morning and fast until lunch. Gone from 210 lbs down to 195, dropped two inches from my waist and added considerable mass to my upper body. When a former user mentioned she quit the vitalsterol version because of heart irregularities, recognized that I too had began feeling mild chest pains. Has anyone else experienced this?

    • James

      That is why I’m reading this forum, to find out about the chest pains. Think I only get them if I don’t exercise, but this is only day 4 for me. What did you find out?

  • Be motivated for it to work
    Brava (Verified Purchase)


    – Eating has improved

    – Eneregy has improved

    – Gym motivation improved *gaining more mass and (cannot say I have lean muscles yet that is all depending on your eating habit). No product will work magically, you have to put your time into it. People always think a product will work magically. Answer is NO, this product enhances your natural hGH and the rest is up to you. Eat Clean, go to the gym and use this product for 30 days and it will work for you. That’s my two cents.. – Brava


      I agree it’s hard work , keep up the good work!!!