Looking For The Best amino acids for muscle growth?

Our team of experts have selected the Best amino acids for muscle growth out of hundreds of models!

Tried enough gym to grow biceps? Yet, the result is not satisfactory. You may have followed a quality diet and all restrictions from your trainer. Something is missing to boost your bodybuilding venture. Yes, the best amino acids for muscle growth is what you need to promote more protein synthesis. Also, this is the secret for muscle endurance and improved performance for athletes.

Amino acids are the building blocks of protein molecule that builds our muscle and runs body function. From enzyme to the hormone, protein has big domination in our body. So, improve protein synthesis has a lot to do in increasing body activity. Not only that but also it has proven goods to balance the body after muscle wasting. So, you can try the heavier workout for next level challengers. Let's focus on some best amino acid formulas in the market.

Our Top Pick

BulkSupplements.com Creatine Monohydrate (Micronized) (100 Grams)

BulkSupplements Creatine 

Editor's Rating

Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, Keto Friendly, 30 Servings (Packaging May Vary)

Optimum Nutrition  Powder

Editor's Rating

XTEND Original BCAA Powder Black Cherry | Sugar Free Post Workout Muscle Recovery Drink with Amino Acids | 7g BCAAs for Men & Women | 30 Servings

XTEND BCAA Amino Acids Powder 

Editor's Rating

Table of Content

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Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, Keto Friendly, 30 Servings (Packaging May Vary)

If you need to support size, strength, and power, try this amino acid supplement. It features 5 grams of 100% pure creatine monohydrate per serving. Also, the powder is tested for all banned substances.

The best of all is these powders help support ATP recycling for explosive strength. It not only improve your performance but also recovers muscle. The powder is unflavored and easily mixes with beverages. But, it is always better to take it in the post-workout session. With five different packages and affordable range, this is one heck of a protein supplement.


Creatine Monohydrate

Customer Review

Definitely the powder of my choice. I not only grew muscles but also develop more endurance in the workout. So, a better performance than before. You just need to mix with shakes and sip off for energy bursts. Oh boy! I am in love with this.

Leo Johnson.


  • Helps in ATP recycling.
  • 100% pure creatine monohydrate.
  • Tested for a banned substance.


  • Doesn't mix well with cold water.
XTEND Original BCAA Powder Black Cherry | Sugar Free Post Workout Muscle Recovery Drink with Amino Acids | 7g BCAAs for Men & Women | 30 Servings

Scivation Xtend is one of the best-branched chain amino acids in the market. It provides 7g of BCAAs per serving. Also, the dietary is good for muscle recovery, muscle growth, and hydration. Not only that, but also it contains a mixture of glutamine and citrulline malate. That facilitates blood circulation and relieves muscle pain.

The 7g BCAAs are blended with these other helpful additives with a ratio of 2:1:1. With zero carbs, calories, and sugar, this is an absolutely safe addition for your health. Guess what? The powder features 15 and more flavors in wide ranges of packages. Add it to your shakes or beverages and find the difference in performance. And yes! This brand is NSF and informed choice certified.

XTEND Original BCAA Powder has different flavors: Blue Raspberry Ice, Freedom Ice, Rainbow Sherbet, Smash Apple, Strawberry Kiwi Splash, Strawberry Mango, Knockout Fruit Punch, Lemon Lime Squeeze, Tropic Thunder, Blomelon Explosion, Orange, Mango Madness, Pink Lemonade. You will get these powders in 4 different sizes of 90 Servings (Pack of 1), 50 Servings (Pack of 1), 30 Servings (Pack of 1), 20 Servings (Pack of 1).


L-Leucine, L-Glutamine, L-Isoleucine, L-Valine, Trisodium Citrate Dihydrate, Potassium Chloride, Sodium Chloride.

Customer Review

I have been using it for over two years now. Absolutely zero side effects. Just make sure you are not adding any extra sugar to alter its taste. Play safe and hit hard with improved muscle strength.

Troy Leland.


  • 7g amino acids per serving.
  • 15 incredible delicious flavors.
  • Zero stimulant, carbs, and sugar.


  • It is a bit pricey.
MuscleTech Platinum Creatine Monohydrate Powder, 100% Pure Micronized Creatine Powder, 14.1oz (80 Servings)

This product comes with a real good price to offers benefits for all. It contains 100% pure creatine powder and 5g of it in each serving. This helps to combat muscle breakdown. Also, it increases intracellular fluid, meaning fuller and bigger muscles.

The powder is unflavored and entirely sugar and filler-free. So, you build muscle size and strength without risking your health. If you take it after workouts, then you can improve your performance. A clinical study found that subjects had 18.6 percent increased strength in bench press in just ten days. Last but not least, the supplement dissolves instantly to water and beverages.


Creatine Monohydrate

Customer Review

A product in less than 10 dollars with 80 servings sounds crazy. But, this is a real saver if you are trying to boost your muscles and workout performance. I used it for over three months and witnessed its benefits. If you are still skeptical, try one bottle. Surely, you will love this. 

David Thompson.


  • 100 Percent Pure creatine Powder.
  • Blends well with smoothies and shakes.
  • Highly affordable.


  • Difficult to mix with cold water.
NOW Supplements, NAC (N-Acetyl Cysteine)600 mg with Selenium & Molybdenum, 100 Veg Capsules

What if there is a veggie capsule with Selenium and molybdenum to maintain better cellular health. The N-acetyl cysteine (NAC) it contains is a stable form of the non-essential amino acid cysteine. This is a sulfur-containing amino acid that acts as a stabilizer for protein structure formation.

Both Selenium and molybdenum are essential trace minerals. These minerals facilitate producing important enzymes in our body. Well, its UL certified and GMO-free. Also, it is free from nuts, soy, eggs, and gluten.

On another note, you may find some black speckling once you open the package for a long time. That happens due to a normal oxidative reaction. But it is absolutely safe to consume. This supplement is unflavored and comes in three different packages.


Selenium 25 mcg, 36% Molybdenum 50 mcg, 67% N-Acetyl Cysteine

Customer Review

My physician suggested me this powder for picking disorder. You won't believe that I am almost cured after a couple of weeks or so. No bad side effects yet the perfect results. I only used it for a month, and now I am completely cured. Thanks to a ton!!!

Victor Miller.


  • Free radical protection.
  • Non-GMO and UL certified.
  • GMP quality assurance.


  • Black speckles may occur over time after the package is opened.
Havasu Nutrition Extra Strength L Arginine - 1200mg Nitric Oxide Supplement for Muscle Growth, Vascularity and Energy - L-Citrulline & Essential Amino Acids to Support Physical Endurance, 60 Capsules

It's time to introduce a nitric oxide booster. Nitric oxides are a tiny molecule with big showdowns. They help to relax your blood vessels so that more oxygen can flow. That, in turn, relaxes your body and provides more physical endurance for your body.

The supplement contains all three forms of L-arginine. Also, it provides high-quality pure ingredients backed by experts. Because of its inclusion of beetroot powder, it adds more stamina to the users. With no artificial flavor and additives, this is entirely safe for your body. No need to mix anything, rather take a capsule to bring changes in lifestyle.


L arginine HCI, AAKG, L Citrulline, Beet Root Powder

Customer Review

If you feel tiring after a bit of workout, then surely, this is your item. Oh, man! I can hit the dust longer than ever before. It's been almost three months, and the change is remarkable. You need more endurance for workout success. And, this is that secret package of your endurance. 

Roger Audette.


  • Contains three forms of L-arginine.
  • Nitric Oxide booster.
  • Includes beetroot powder.


  • L-arginine content could have been more.
BulkSupplements.com Creatine Monohydrate (Micronized) (100 Grams)

Creatine monohydrate is an organic compound with a wide range of benefits. A compound to facilitate the recycling of ATP in brain and muscle tissues. This has proven goods in weight gain and to boost anaerobic strength.

Other than that, it contributes to increases the muscle mass. Also, it is a supplement to support brain and cognitive function. You can simply mix it with juice, water, or smoothies. The powder has seven different packages in an affordable price range.

Things do not end here! This powder is lab-verified and third party tested. Not only that, but also it is manufactured to cGMP standards. Guess what? This product is manufactured and packaged under an FDA registered facility.


Creatine Monohydrate

Customer Review

No more puzzles and hide-and-seek. This is real and works great on athletes to improve performance. It helped me to gain weight and increase my biceps. Though it does not taste good, the output is satisfactory. I have recommended it to many of my friends, and I am sure you can't regret it.

Larry Ellington.


  • Increases muscle mass.
  • Boosts anaerobic strength.
  • Supports brain and cognitive function.


  • Doesn't taste good.
Jarrow Formulas N-A-C Sustain, Supports Liver and Lung Function, 600 mg, 100 Sustain tabs

Jarrow formulas feature N-acetyl-L-cysteine- a stable form of amino acid with modification. This works as a precursor of antioxidant and glutathione. The later acts on detoxification and works against oxidative stress.

This tablet is also unique for its bilayer release technology. At least 1/3 of the tablet is a quick release, while the other 2/3 is sustained release. The antioxidant it provides supports both inside cells and the cell membrane. Also, this has proven benefits to liver and lung function. So, better immune support overall.


N-Acetyl-L-Cysteine, Carbomer, cellulose, calcium phosphate, beetroot powder, stearic acid, magnesium stearate, silicon dioxide, and a food-grade coating.

Customer Review

This is the best NAC, I know. This one is good on my stomach and importantly, cuts depression. I feel lighter and relaxed with this. Also, I grew more endurance with these amazing tablets. No bad side effects but to improve my lifestyle to a quality one. 

Brain Lewis.


  • Bilayer release technology.
  • Antioxidant and glutathione precursor.
  • Supports liver and lung function.


  • Doesn't taste good.
Six Star Explosion Pre Workout Pills with L-Arginine, Nitric Oxide, Beta Alanine, and Energy, 120 Count

Are you in search of quick results? Then try three caplets for intense muscle pump. Its modified amino acid helps to increase nitric oxide. That delivers power and energy to your muscles. So, you can intensify workouts for better goals.

This supplement is also good for its high-standard carnosyn from beta-alanine. This promotes muscular endurance. So, you can go for long hours to find more benefits. Furthermore, it is the third-party tested for purity and potency. This is also great for its value, where you get ten servings for free.


Advanced Pump Complex, Caffeine anhydrous. Beta-alanine, and more.

Customer Review

Wow, a heck of a supplement- the real game-changer. I only took it for a month, and the change is remarkable. Can't ask better than that. I not only increased the number of reps but also increased more tolerance to higher goals. More energy for long going. I am sold!!!

Vincent Ferrell.


  • The third-party tested and verified.
  • Promotes muscle endurance.
  • Creates an intense muscle pump.


  • Does not taste good.
Quantum Health Super Lysine+ / Advanced Formula Lysine+ Immune Support with Vitamin C, Echinacea, Licorice, Propolis, Odorless Garlic (90 Tablets)

Nothing beats this supplement when you combine lip care and immune support. This is the leading Lysine formula in entire America. Some of its key ingredients include vitamin C, garlic bulb, and propolis. These help to balance your body and prevent stress.

One of the best benefits of this supplement is antioxidant support. Yes, it works to combat free radicals in the bloodstream. Besides, it won the best supplement award in 2008. Also, it is best for life's essential award winner in 2013 and 2015. The supplement is well affordable, with no real side effects.


Vitamin C, Garlic Bulb, Echinacea Whole Plant, L-Lysine, Licorice Root, Calcium, and more.

Customer Review

I bought it to help my immunity. This worked a miracle to eradicate my herpes. Once you have herpes, you know how bad the experience is. Also, no more dry lips after using it for a month. To me, this added only benefits to my lifestyle. Great to have this in time. Chao!!!

Stephen Irving.


  • Good for lips care.
  • Supports the immune system.
  • Antioxidants combat free radicals in the bloodstream.


  • It may cause acne in long term uses.
Evlution Nutrition BCAA Energy - Essential BCAA Amino Acids, Vitamin C, Natural Energizers for Performance, Immune Support, Muscle Building, Recovery, B Vitamins, Pre Workout, 30 Serve, Blue Raz

This is an amino acid supplement with the most versatile flavors in the market. Also, you will get it in two different packages. This provides 5 g of branched-chain amino acids per servings. That is gluten-free and completely free from carbs, sugar, and calories.

What's more, is this supplement includes vitamin C and antioxidants to boost your immune strength. Furthermore, it strengthens your muscles and brings more tolerance to it. That is because it promotes muscle protein synthesis. Besides, it supports both aerobic and anaerobic exercise for better performance. And there is evidence to reduce muscle soreness and damages.


Vitamin C, Vitamin B6, Vitamin B12, L-Leucine, L-Isoleucine, L-Valine, Beta-Alanine, L-Alanine, Taurine, Natural Caffeine (from Coffee Bean), Green Tea Extract.

Customer Review

This is the best lift up, I know. I have tried all its flavors, and they are too yummy to handle. I take it before workouts, and whenever I am down with energy. More energy and good tolerance for long hours of activity. That's great of its value.

Donald Vann.


  • Wide ranges of flavors.
  • Protective antioxidants.
  • Increased muscle endurance and strength.


  • It contains soy.

What Are Amino Acids?

Amino acids are the structural units that makeup protein molecules. These organic compounds are composed of carbon, nitrogen, hydrogen, and oxygen compounds. All amino acids have a basic amino group and acidic carboxyl group in its organic structure.

In the human body, 20 different amino acids work as a building block for proteins. Among those, nine amino acids are known as essential, and rest 11 are non-essential amino acids.

Essential amino acids are those, which body cannot produce it if not taken in your food items. So, it would help if you had a good diet and supplement to cover body demands. These nine essential amino acids are-

1. Phenylalanine.

2. Valine.

3. Threonine.

4. Tryptophan.

5. Methionine.

6. Leucine.

7. Isoleucine.

8. Lysine.

9. Histidine.

What are Branched Chain Amino Acids, and why are they important?

Valine, leucine, and Isoleucine are branched-chain amino acids. These essential amino acids have anabolic properties. Because of their aliphatic side chain and central carbon atom, these units look like a branch. Hence, they were named branched-chain amino acids.

Branched-chain amino acids are good for a number of reasons. These building block of proteins is involved in cellular signaling pathways. Other than that, they increase muscle growth and decreases muscle soreness. Not only that, but also they help to reduce exercise-induced fatigue.

Muscle wasting is a big concern when protein breakdown exceeds muscle protein synthesis. Branched-chain amino acids minimize muscle wasting and boost protein synthesis. Also, people with chronic liver cirrhosis found benefits from branched-chain amino acids.

Amino Acid and Muscle Growth Relationship

Protein is solely responsible for our muscle development. A healthy adult requires at least 1 gram of protein per kg of body weight every single day. Amino acids- the baseline monomers help in protein synthesis and repairs the lean muscles.

If protein synthesis outweighs protein degradation, then you build more muscles. In another way, if protein degradation gets the upper hand, you lose muscle tissue. To ramp protein synthesis, you have no better options other than a selective diet that contains essential amino acids.

Our body is unable to supply essential amino acids. So, you must take them in diet or use supplements that contain essential amino acids. In short, you need to use this fuel for muscle growth and endurance. On another note, the optimum dose is necessary for amino acid supplements to maximize protein synthesis potential. So, consult your dietician or follow the guidelines of amino acid supplements.

How to Choose the Best Amino Acid Supplement

Choosing a quality amino acid supplement depends a lot on your personal view. All these supplements contain the same three amino acids- L valine, L- leucine, and L-isoleucine. They are the key building block to promote protein synthesis and preserve lean body mass. Besides, look for some other parameters to find a convenient brand-

Personal Preference

Amino acid supplements are available in both capsules and in powder form. You can either try powder form where you mix it with beverages or capsules for easy going. Some people feel it difficult to mix powder and try the capsule ones.


Try to find supplements with the purest options. Also, look for formulas that exclude caffeine. Caffeine is unnecessary and only stimulates your nerve for a while. Make sure the formula excludes any controversial ingredients such as human hair or avian feathers.


Flavors are added goods with this supplement. It brings more attachment to your daily demand. Unflavored items often have a bad taste, and users don't really continue for long.

Customer Review

Picking the best amino acid formula is never easy unless you read a few comments of users. Make sure you scroll and read a few comments to understand the real picture of the brand. Also, account for some negative feedback to know about its flaws.

Frequently Asked Questions

Q 1: When is the best time to use amino acids?

Q 2: Which is the best ratio of amino acid in a supplement?

Q 3: Is there any side effects of amino acid consumption?

Bottom Line

Amino acids are the building block for your muscle growth. You need to take essential amino acids either from diet and try supplements to cover your body demand. Here at Fitgeeky, we have listed some of the best amino acids' best brands to help you grow muscles and bring more endurance in life. Try it to cut muscle wasting and improve protein synthesis.

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