The Best Amino Acids Reviewed and Rated

Amino acids are a great option to help you to reach all manner of body goals. Whether you are aiming to lose weight, gain muscle or lower your total body fat, amino acids can help you do all of this. Most amino acid supplements aim to support the reparation and growth of the hard earned muscle after a workout, but best amino acids supplements can help to promote fat loss my stimulating the metabolism to work faster and burn more fat.

Our Top 3 Picks

Optimum Nutrition BCAA 1000 mg
  • Optimum Nutrition BCAA 1000 mg
  • 5 out of 5
    Our rating
  • Branched Chain Amino Acids
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Optimum Nutrition Superior Amino
  • Optimum Nutrition Superior Amino
  • 4.6 out of 5
    Our rating
  • Contains Micronized Amino Acids
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Dymatize Nutrition BCAA Complex 5050
  • Dymatize Nutrition BCAA Complex 5050
  • 4.2 out of 5
    Our rating
  • Supports Muscle Protein Synthesis
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10 Best Amino Acids Tested

No matter what your fitness goals, amino acid supplements are an excellent addition to any diet and exercise regime. This list has collected some of the best amino acids supplements available to help you to work towards the body you’ve always dreamed of.

1. Optimum Nutrition BCAA 1000 mg

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Optimum Nutrition BCAA Amino Acids are a branched chain amino acid dietary supplement.
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The Optimum Nutrition BCAA Amino Acids support the body through both training and recovery, so that you can get the best results possible. The Optimum Nutrition BCAA Amino Acids help and aid your body through repairing and growing muscles to perform at the best of your ability. Simply consume two of the tablet capsules per day either 45 minutes before a workout, or directly afterwards, and the Optimum Nutrition BCAA Amino Acids will do all of the repair work. As well as gaining muscle mass, the Optimum Nutrition BCAA Amino Acids also aid in fat loss without losing muscle mass, and this is massively helpful for those who are trying to lose weight, or for an athlete on a cut cycle.

Typical results include a natural, but slightly accelerated progression in muscle mass, and a lower recovery time than exercise and nutrition alone.

400 capsules provide a massive amount of the product, so it is great value for money, and will last as long as possible through proper use and consumption.
Pros
  • Great for gaining muscle mass
  • Great price value
  • Great for fat loss
Cons
  • Lower dosage of protein

2. Optimum Nutrition Superior Amino 2222 Tabs

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The Optimum Nutrition Superior Amino 2222 Tabs use soy lecithin, silica, croscarmellose sodium, and stearic acid to provide the amino acid proteins that we need to repair and build new muscle.
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These capsules are more than double the microgram weight of the Optimum Nutrition BCAA Amino Acids and offer a wider range of naturally occurring and essential amino acids, which aid our bodies to repair muscle tissue naturally and healthily. The Optimum Nutrition, Superior Amino 2222 Tabs offer seven essential amino acids, as well as 10 conditionally essential and nonessential amino acids that are specifically required by those who are training at a professional athlete standard.

The Optimum Nutrition Superior Amino 2222 Tabs help to accelerate fat loss, and muscle repair, as well as the natural growth of the muscles, so they are useful to any person at any level of physical fitness and training.

The Optimum Nutrition Superior Amino 2222 Tabs are taken six times a day, before meals and before and after training, which is considerably more than other amino acid tablets. The main downside to the Optimum Nutrition Superior Amino 2222 Tabs is that they are much larger than other, smaller tablets, and can be difficult to swallow, which is also made worse by the higher rate of taking the tablets.
Pros
  • Contains seven essential amino acids
  • Helps build and maintain muscle mass
  • Potent formula
Cons
  • Needs to be taken 6 times a day

3. Dymatize Nutrition BCAA Complex 5050 Branched Chain Amino Acids

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The Dymatize Nutrition BCAA Complex 5050 is another branched chain amino acid supplement to help aid muscle training and repair.
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The Dymatize Nutrition BCAA Complex 5050 comes in a powder form, and is simple and easy to add to a protein shake, smoothie, or meal replacement shake in order to aid your body’s natural health and growth progression.

The Dymatize Nutrition BCAA Complex 5050 is easy to consume up to three times a day with or before a meal as part of a healthy diet and exercise regime. It is unflavoured, so there are no artificial colourings or flavours, making it a totally healthy protein supplement. Each batch of Dymatize Nutrition BCAA Complex 5050 contains about 60 portions, so it is great value for money for those who train hard for a prolonged period of time.

The main drawback of the Dymatize Nutrition BCAA Complex 5050 is that it is not in capsule form, so it has to be added to a shake or smoothie, and so it is not as convenient to take as an amino acid capsule supplement.

However, some customers may find this much easier to consume if they have difficulty taking tablets, or if they regularly take shakes, and that makes this product rate pretty high on our best amino acids list.
Pros
  • Unflavored
  • No artificial ingredients
  • Potent formula
Cons
  • Does not mix well

4. Dymatize Nutrition BCAA Complex 2200 Branched Chain Amino Acids

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Dymatize Nutrition BCAA Complex 2200 Branched Chain Amino Acids is another branched amino acid supplement, which comes in capsule form.
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It can be taken up to four times a day in order to aid and support natural muscle growth, development and repair as a part of a healthy and balanced lifestyle.

Capsules are much more convenient and easy to take than a powder that is added to a shake.

With 50 servings in each container, the Dymatize Nutrition, BCAA Complex 2200, Branched Chain Amino Acids are excellent value for money and will last for those who train hard for long periods of time. They aid fat loss and muscle growth, so they are a great addition to the diet of anyone of any physical ability and training level.

Added vitamin B6 helps your body to absorb as much of the proteins as possible, and the Dymatize Nutrition, BCAA Complex 2200, Branched Chain Amino Acids contain the best quality amino acids available to help you build the body of your dreams.

Dymatize has combined the most essential amion acids for much regeneration, and developed them in order to make the amino acids release for an extended amount of time in order to maximise the benefits for your muscular growth.
Pros
  • Promotes muscle growth
  • Contains vitamin B6 
  • Great price value
Cons
  • None

5. MRM BCAA + G 1000 Lemonade

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MRM BCAA + G 1000 enhances your body’s natural growth and recovery, as well as helping to minimise muscle recovery time between workouts.
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With the addition of L-Glutamine, the MRM BCAA + G 1000 dietary supplements are easily digested and absorbed into the body and put to work. It also helps to give energy for a successful workout, so you can work as hard as you can and receive the best results possible.

The MRM BCAA + G 1000 comes in a powder form, and this particular option is lemonade flavoured, however there are other flavours to choose from for the taste preferences of the customer. The directed use is three scoops twice a day, so it is easily added to shakes and smoothies in order to consume it, which many find easier than taking capsule tablets.

There are over 150 servings per container, so it can easily last for over a month, which is great value for money.

The MRM BCAA + G 1000 is totally vegan and gluten free, so it is ideal for any one of any physical ability or dietary requirement to help them reach their body goals.
Pros
  • 100% vegan
  • Gluten free
  • Great price value
Cons
  • Unpleasant taste

6. Dymatize Nutrition L-Carnitine Xtreme

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Dymatize Nutrition L-Carnitine Xtreme promotes fat burning, muscle growth and development, as well as providing more energy for a highly successful workout.
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L-Carniine stimulates the metabolic rate in order to promote fat loss, and the amino acids within the capsules help your body to recover quickly and develop the hard earned muscle.

The container has around 60 servings of the capsules, which are taken 1-2 times a day with a meal, for the most convenient usage possible. It is fully vegan and wheat free, so the Dymatize Nutrition L-Carnitine Xtreme capsules are suitable for a number of varied dietary requirements.

The capsule form makes it very easy and convenient to take the supplement, as there is no need for shakes and smoothies, so it is a much lower calorie option than some powder forms. The Dymatize Nutrition L-Carnitine Xtreme supplement is a great option for those who wish to aid and slightly accelerate their journey to their dream bodies.

It is specifically for adults over the age of 18, and is not recommended for teens, pregnant women, or women who are lactating; you should also consult with your physician before taking the supplement to ensure that it is safe to do so.
Pros
  • Helps with fat burning
  • Promotes muscle growth and development
  • 100% vegan
Cons
  • Not recommended for teens and pregnant women

7. Now Foods Taurine Double Strength

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Now Foods Taurine Double Strength capsules help both the nervous and visual systems, as well as aiding protein synthesis after a hard workout.
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This supplement can be used by both athletes and beginner gym-goers to help aid their fitness progression, but can also be used to help maintain a healthy visual function and nervous system for older customers.

Simply take once or twice a day with water in between meals for the benefits that the Now Foods Taurine Double Strength capsule offers. This product in particular has twice the amount of taurine as a usual portion, so you can get the standard or double strength product depending on your own personal preference.

The capsules are totally vegan and gluten free, so the can be taken by anyone, no matter their dietary preference and requirements.

The Now Foods Taurine Double Strength capsules should only be taken by those who are over 18 and a physician should be consulted before you begin taking them.
Pros
  • Potent formula
  • 100% vegan
  • Gluten free
Cons
  • It may make you feel lethargic

8. Now Foods L-Arginine 1000 mg

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Now Foods L-Arginine 1000 mg is an excellent fat loss accelerator, as well as amino acid supplement to aid and promote healthy, natural muscle growth.
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The supplement comes as a 1000 mg capsule that should be taken between 1 and 3 times daily in order to help support the body’s natural recovery and muscle growth period.

The capsules are vegan and gluten free, so they are suitable for a variety of dietary requirements for anyone who wishes to advance their fitness and health levels. The L-Arginine aids the metabolism and the other ingredients in the Now Foods, L-Arginine, 1000mg capsules help to provide more energy for a productive day and successful workout.
These capsules are pharmaceutical grade supplements, so they are totally safe to use, but should still not be taken unless you have consulted a physician, and should never be taken when pregnant or breastfeeding.
Pros
  • 100% vegan
  • Gluten free
  • Potent formula
Cons
  • Not suitable for pregnant women or women who breastfeed

9. Source Naturals Best Amino Acids L-Lysine 1000 mg

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Source Naturals L-Lysine 1,000 mg tablets are completely naturally sourced and provide all of the essential amino acids and vitamins to help you build muscle and burn fat as efficiently as possible in one easy daily consumption.
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This is much easier than powdered amino acid supplements that need to be added to a liquid in order to consume. They are fully vegan and gluten and soy free, their composition is mostly vegetable proteins, so they are suitable for a wide range of dietary requirements in order to aid fitness progression. They are ideal for beginners to the amino acid supplement market as they are not high dosages and are only take once daily.

With 100 tablets per container, the Source Naturals L-Lysine 1,000 mg tablets are a great value for money and are guaranteed to last over three months with proper use and consumption. As with all supplements, you should consult a physician before usage.
Pros
  • Completely natural
  • Suitable for vegetarians and vegans
  • Gluten free
Cons
  • Large pills

10. Now Foods L-Tyrosine 500 mg

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Now Foods L-Tyrosine 500 mg is a low dosage amino acid supplement that is ideal for beginners to amino acid supplements.
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The Now Foods L-Tyrosine 500 mg tablets are take up to three times a day as required, so if you can customise your consumption to your workout levels and routine.

With 120 tablets per bottle, the Now Foods, L-Tyrosine 500 mg tablets are great value for money and suitable for a variety of dietary requirements.

The Now Foods L-Tyrosine 500 mg tablets come with more risks than some of the other amino acids on this list, such as being danger to those with an over active thyroid, or those who are taking different types of medications, so it is vitally important to consult a physician before taking any of these supplements.
Pros
  • Great for beginners
  • Great money value
  • Potent formula
Cons
  • Not suitable for those with an over active thyroid

What are amino acids?

While some amino acids can be produced in your body, most are in a category known as “essential amino acids.” What this means is that these are not produced in the body, but must be provided via other sources such as food or in a supplement. Simply put, amino acids are the foundation, or base, of protein molecules. When you consume protein, your body breaks the molecules and at this stage the amino acids are revealed and then are used for a variety of processes. Many of these processes involve things like burning fat or building muscle. For this reason, amino acid supplements are typically associated with athletes who have these specific goals. However, anyone can benefit from an amino acid supplement.

amino

Your body needs protein, therefore indicating your body also needs those amino acids in order to properly function. While it is easy to incorporate protein/amino acid rich foods into your diet, in many instances it may help to additionally take an amino acid supplement. As was briefly mentioned earlier, there are two main classes of amino acids: essential and non-essential. Essential amino acids are not produced in the body and have to be consumed through food or a supplement. Non-essential amino acids can be produced by the body, but that can be misleading. While they can be produced in the body, often times not enough is produced, leaving you with a deficiency that needs to be corrected.

Before discussing in more detail all of the benefits of taking an amino acid supplement, it is first important to understand the possible symptoms and risks your body could be experiencing if you have an amino acid deficiency. You may suffer from a weakened immune system, memory problems, fatigue, depression, digestive problems, and more. There is such a wide range of problems because amino acids are so powerful and are capable of doing so much. Each amino acid has a different use in the body (or is capable of doing something different), which is why it is so important to make sure you have the right amount of both the essential and non-essential amino acids.

What are the benefits of amino acid supplements?

Most notably, amino acids can help with both losing fat and building muscle mass. For those looking to lose weight (whether you are an athlete or not), taking an amino acid supplement will help to stimulate certain weight loss hormones and help to speed up your metabolism to increase your fat burning potential. For many people, even those who eat well and exercise, they oftentimes struggle to lose weight because of their hormones. If your weight loss hormones are not stimulated, you may try so hard and never shed a pound. Introducing an amino acid supplement can make all the difference, as it stimulates just what you need in order to get your body working towards your weight loss goal.

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As for building muscle mass, amino acids are commonly used to help develop and build muscle. In particular, the essential amino acid leucine is incredibly helpful in aiding your muscles, helping them stay strong and grow after each and every workout. Not only will this amino acid help with muscles that are being used, studies have also shown it can help to protect muscle mass that isn’t being exercised. While you need to exercise in order to develop and increase muscle mass, it is encouraging to know that amino acids like leucine can help protect your muscles that aren’t being trained, as well as helping to build the ones that are.

Leucine is part of what is known as branched-chain amino acids (BCAAs), which is comprised of leucine, isoleucine, and valine. These three essential amino acids are grouped together because of their similar functions (that you won’t find in other amino acids) that help to decrease protein from breaking down during a workout, lessen fatigue during and after a workout, and to help muscles grow. For this reason, athletes tend to take a supplement of BCAAs in order to ensure they are getting enough of these three specific amino acids.

Outside of those two main benefits, there are numerous other equally important benefits that you can gain from taking an amino acid supplement. Reducing fatigue and increased mental focus are two major benefits that anyone would want to experience, no matter who you are or what your lifestyle is. In particular, glutamine is a great non-essential amino acid that helps with improving mental focus. If you suffer from poor memory or decreased concentration, glutamine will likely help improve your life in those areas. Additionally, along with other amino acids (specifically, arginine),  it’ll help you sleep!

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Remember we mentioned earlier that an amino acid deficiency may lead to a weakened immune system? On the reverse side, taking an amino acid supplement will boost your immune system. Amino acids work to fuel the immune system so that it can properly fight off whatever is attacking your body. Especially if you are feeling sick, taking a supplement can help give your immune system the boost it needs to get the job done. However, why wait until you are sick to give your body some help? Taking a supplement can help make sure your immune system is always functioning well, hopefully keeping you from getting sick in the first place.

Amino acids are essential to the body. If you are lacking any of the essential, or non-essential, amino acids, you will likely experience some sort of negative symptoms. However, by taking an amino acid supplement, you can provide your body with all sorts of amazing benefits. If you are an athlete, taking a BCAA supplement will help you to burn fat, build muscle, increase endurance, and decrease fatigue. For everyone else, amino acids will help you too. Whether you are looking to lose weight, increase focus, get more sleep, or boost your immune system, you will find that amino acids can help you to do all of that. By taking a supplement, you are guaranteeing yourself that you are getting all of the amino acids you need, instead of having to wonder about what you are getting from the food that you eat.

As with any supplement, please consult your doctor before starting to take any amino acid supplement. Your doctor can help you further to understand which amino acids will be best for you, as well as a proper dosage that will be safe for you to take.