GF-9 Review: Can It Really Help You Build Muscle?

GF-9 elevates vitality naturally with a human growth supplement, boosting energy, building muscle, and supporting overall well-being without harmful chemicals.

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In This Review

What is GF-9?

As we age, our body naturally starts producing less of the hormones that gave us so much energy and vigor in our youth. GF-9 is a supplement that can help kick-start the production of those hormones once again.

But don’t get the wrong idea. GF-9 is not a steroid and it does not contain any dangerous chemicals. Instead, it uses a variety of amino acids and natural extracts to help the user build more muscle mass.

In the following GF-9 review, we will be telling you what you need to know about GF-9 as a consumer. This will include a look at the formula, what people are saying about GF-9, and how it might affect your body.

How Does GF-9 Rate According to Our Experts?

Overall Rating: 3.7

Value for Cost

3.8/5Value for Cost



Brand Highlights

  • Backed by Science
  • FDA-Regulated
  • 90-Day Money-Back Guarantee

Key Ingredients

  • Oxo Proline
  • L-Glutamine
  • L-Lysine
  • L-Arginine
  • L-Cysteine
  • Schizonepeta Powder


  • It comes in capsule and Fruit Punch mix form
  • Thousands of Reviews attested its effectiveness
  • GF-9 does not contain any hormones
  • It can help improve sleep quality
  • It can boost muscle growth
  • GF-9 can help improve bone and joint function


  • The capsule form contains gelatin
  • It may take a while to see the results

Who is the Manufacturer of GF-9?

The company that makes GF-9 is called Novex Biotech. Novex Biotech was established in 2005 and they state that their formulas are backed by science and results-driven ingredients.

Novex Biotech also states that they work with the most renowned research scientists in the world to help devise their formulas. They make a wide variety of health supplements and offer discounts to veterans.

How Does GF-9 Work?

Human growth hormone is produced in our body when we are young to help us develop normally. But as we get older, that hormone isn’t produced en masse. GF-9 works by naturally restarting the human growth hormone release process[1].

GF-9 works to strike a better balance of hormones for men. This can mean more testosterone which will give you more energy and sexual desire. It can also mean building more lean muscle[2].

GF-9 can also work to help you lose excess weight. And it does all of this naturally through a proprietary blend of amino acids. So it is likely to work without any harsh side effects.

GF-9 Key Ingredients – Are they Safe & Effective?

Before you take any supplement, you should know what’s in it. So to help you decide on GF-9, here is a breakdown of its key ingredients:

Oxo Proline

Oxo proline is a proprietary ingredient. According to some studies, this ingredient can improve the bioavailability of the other amino acids in the formula for this supplement[3].


L-glutamine is type of amino acid that has been shown to help grow the muscles during physical activity. In particular, it seems to benefit the quadracep muscles in growth[4].


L-lysine is a limiting amino acid that has been linked to muscle growth. Studies have observed that those taking l-lysine were able to build more resilient muscle. This works because l-lysine promotes muscle fiber hypertrophy and increases protein synthesis in the muscles.


L-arginine is another amino acid that has been proven to have vasodilatory effects. This means that it can help lower blood pressure and help improve overall circulation. An AHA Journals report had this to say in response to a study on L-arginine:

This is the first randomized, double-blind study that investigated whether supplemental oral l-arginine could improve peripheral blood flow and functional status in patients with heart failure. The results suggest that oral l-arginine has beneficial effects in patients with moderate to severe heart failure[5].

Some studies suggest that consumption of certain amino acids, among which l-Cys, may be related to certain cardiovascular benefits, such as reduced arterial stiffness or reduced blood pressure.


L-Cysteine is an amino acid that is also linked to improved blood flow as we see in the following National Institutes of Health study quote:

Some studies suggest that consumption of certain amino acids, among which l-Cys, may be related to certain cardiovascular benefits, such as reduced arterial stiffness or reduced blood pressure[6].

By helping more blood get to the muscles and extremities, this amino acid can help improve cardiovascular function and therefore improve athletic performance.

Schizonepeta Powder

Schizonepeta is a species of flowering plant that has been shown to have a wide variety of health benefits including antioxidant and anti-inflammatory properties. In at least one animal study, it was found that this plant extract can increase muscle strength[7].

Benefits of GF-9

Now that we know what is in GF-9 and what science has to say about the ingredients, let’s take a practical look at what all this means for your body:

  • Increased Strength – The formula for GF-9 has been clearly proven to not only improve the functions of your muscles; but also to increase their strength as well.
  • Better Cardiovascular Health – There are multiple amino acids in GF-9, such as L-arginine, that can help lower your blood pressure and get more blood flowing to your extremities. This means more oxygen for your muscles when you are working out. It can even mean better sexual performance since it will help get more blood flowing to the genitalia.
  • Increased Physical Energy – If you feel more sluggish in your later years then GF-9 may be able to help. The vasodilative ingredients in the formula can give you more physical energy.
  • Improved Physique – Of course, all of this leads to a more active lifestyle. And a more active lifestyle will help improve your physique. GF-9 can help you lose weight, get in shape, and build more muscle.

GF-9 Review – FAQs

Q: How do you take GF-9?

A: GF-9 comes in capsule form and powdered drink mix form. With the capsules, you should take them either in the morning or at night two hours before a meal. The drink mix is supposed to be mixed thoroughly with water and consumed. You should also ask your doctor how you should be taking GF-9 for optimal results.

Q: What is the return policy for GF-9?

A: When you buy GF-9 from the manufacturer, you will be able to take advantage of a generous 90-day money-back guarantee.

Q: What sets GF-9 apart from the competition?

A: Few supplements on the market boast the unique amino acid blend that GF-9 does. This gives it multiple health benefits beyond just feeling physically stronger. It can help improve your outlook, mindset, and even mood.

Q: Is GF-9 worth it?

A: GF-9 is definitely worth it if you want to live an overall healthier lifestyle. It will help you stay active and fit as you age.

Q: Where can I buy GF-9?

A: You can get GF-9 on the official manufacturer’s website. On the official website, a one-time purchase of GF-9 in capsule form will cost $99 with discounts available for multi-month orders. The prices are the same for GF-9 in drink powder form.

What Do the GF-9 Reviews Say?

The GF-9 reviews have been very positive so far. To help you understand how GF-9 might affect you, take a look at what people have said about GF-9:

Improved energy, improved sleep, reduced body fat, libido, immune support, muscle mass, endurance, physical performance. I take 4 capsules with water on an empty stomach, either in the morning 2 hours before breakfast, or 2 hours after dinner before bedtime. Lots of useful substances. –Alex

I’ve been using this product for one year, their results are amazing –Noah

I feel the change in my joints no longer aching and overall more energy. I took this in the evening on an empty stomach several hrs before bedtime. –William C.

GF-9 Review – Conclusion

GF-9 is a supplement that has multiple health benefits for men. It can help improve your overall physical health, help you sleep better, and even help you get in shape. It generally makes you feel more youthful.

Remember that the capsule form of GF-9 is made from gelatin so it is not exactly vegan-friendly. But it does come in drink mix form if you want to avoid the animal byproducts.

We have given the best Bodybuilding Supplements below to make it easier for you to find safe and effective products. The ranking is based on critical factors like improving strength, boosting stamina and help in building muscle.

Below are some of the best Bodybuilding products on the market today, in our opinion.

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Verdict on Claimed Benefits: Below is our summary of the available evidence for the claimed benefits of below mentioned bodybuilding supplements, and powders based on the available research:

High Impact Plant Protein | Powerful Workout Supplement
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Overall Rating: 4.9
TestoGreens | Doctor Formulated
Supports Hormone Balance*Gold Star Evidence
Improve Stamina and Energy*Gold Star Evidence
Improve Testosterone Level*Gold Star Evidence
Build Strength and Muscle*Strong Evidence
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Overall Rating: 4.8
CrazyBulk | Powerful Muscle Enhancers
Increases Muscle Mass*Gold Star Evidence
Boosts Energy and Focus*Gold Star Evidence
Promotes Fat Loss*Gold Star Evidence
Supports Overall Health*Strong Evidence
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Overall Rating: 4.8

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.

Customer Reviews for GF-9

GF-9 Review: Can It Really Help You Build Muscle?

Customer Reviews & Ratings

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We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.

[1] Growth Hormone in Aging :
[2] The role of testosterone in male sexual function :
[3] Role of oxoproline in the regulation of neutral amino acid transport across the blood-brain barrier :
[4] The Influence of Oral L-Glutamine Supplementation on Muscle Strength Recovery and Soreness Following Unilateral Knee Extension Eccentric Exercise :
[5] Randomized, Double-Blind, Placebo-Controlled Study of Supplemental Oral l-Arginine in Patients With Heart Failure :
[6] Effects of the Usage of l-Cysteine (l-Cys) on Human Health :
[7] Schizonepeta tenuifolia extract (DKB138) enhances the muscle strength in dexametasone-induced muscle atrophy mice model :

**This is a subjective assessment based on the strength of the available informations and our estimation of efficacy.

*Result may vary. If you are pregnant, nursing, have a serious medical condition, or have a history of heart conditions we suggest consulting with a physician before using any supplement. The information contained in this website is provided for general informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a medical advice. Always consult your doctor before using any supplements.

Disclosure of Material connection: Some of the links in the post above are "associate sales links." This means if you can click on the link and purchase an item, we will receive a commission. Regardless, we only recommend products or services which we use personally and/or believe will add value to our readers. We are disclosing this in accordance with the Federal Trade Commission's 16 CFR, Part 255: "Guides Concerning the Use of Endorsements and Testimonials."

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