Single Amino Acids

Understanding Single Amino Acids: A Comprehensive Guide

Amino Acids are molecules that combine to form proteins. They are the building blocks of life. Roughly 500 amino acids have been identified in nature, but just 20 of them make up the proteins found in the human body. Eleven of these are made inside the body, while the remaining 9 must be supplied by food and, as needed, through supplementation.  Read more >

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  1. Melatonin 5mg (Peppermint) - 180 + 180 Sublingual Tabs (2 For Deal)

    MELATONIN WILL IMPROVE THE QUALITY OF YOUR SLEEP! Melatonin is a safe and effective alternative to ease the way into restful sleep. It is a natural hormone that can normalize sleep patterns when insomnia is caused by a disruption of the body's circadian rhythm. Supplemental melatonin and bright light therapy are considered a standard medical treatment for cases of jetlag, shift work, age-rela...

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    100 MG 5-HTP TIME RELEASE. 5-htp is a naturally occurring amino acid and is the direct precursor to serotonin and is taken for mood support. It works by increasing the cells output of serotonin. Recent studies have suggested not only is it helpful for depression, but also may be beneficial in helping your body to regulate appetite, sleeping problems, anxiety, and cognitive enhancement. [CAPLET]

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    100 MG 5-HTP TIME RELEASE HIGH POTENCY. 5-htp is a naturally occurring amino acid and is the direct precursor to serotonin and is taken for mood support. It works by increasing the cells output of serotonin. Recent studies have suggested not only is it helpful for depression, but also may be beneficial in helping your body to regulate appetite, sleeping problems, anxiety, and cognitive enhance...

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    100% NATURAL GABA - CHEWABLE TABLETS Natural Factors GABA is made with PharmaGABA, a 100% natural form proven to cross the blood/brain barrier unlike synthetic forms. Although other nutrients such as L-Theanine can also increase alpha brain waves, GABA is more powerful and can provide a quick fix in circumstances of extreme stress, as with phobias and fears. Enjoy relaxation with convenient c...

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  5. Stress-Relax 100% Natural Gaba 100mg (Tropical Fruit) - 120 Chew Tabs

    100% NATURAL GABA - CHEWABLE TABLETS Natural Factors GABA is made with PharmaGABA, a 100% natural form proven to cross the blood/brain barrier unlike synthetic forms. Although other nutrients such as L-Theanine can also increase alpha brain waves, GABA is more powerful and can provide a quick fix in circumstances of extreme stress, as with phobias and fears. Enjoy relaxation with convenient c...

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    100% NATURAL GABA Natural Factors GABA is made with PharmaGABA, a 100% natural form proven to cross the blood/brain barrier unlike synthetic forms. Although other nutrients such as L-Theanine can also increase alpha brain waves, GABA is more powerful and can provide a quick fix in circumstances of extreme stress, as with phobias and fears. [VCAPS]

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  7. L-Arginine 500mg - 90 V-Caps

    500 MG L-ARGININE FROM NATURAL FACTORS This amino acid is known for its ability to promote strength and endurance by maintaining the formation of nitric oxide in the body. Natural Factors L-Arginine provides 500 mg per capsule and may be helpful for a number of health concerns. Studies show that regular supplementation with L-Arginine may help improve blood flow, blood viscosity, and reduce bl...

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    Natural Factors L-Arginine 1000 mg provides a high-potency dose of this non-essential amino acid in a free-form that is easily absorbed and utilized by the body. L-arginine plays a role in protein synthesis and is commonly included in routines that support physical performance and active living. This formula may help support exercise capacity as part of a healthy lifestyle, particularly for tho...

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    1000 MG L-ARGININE FROM NATURAL FACTORS This amino acid is known for its ability to promote strength and endurance by maintaining the formation of nitric oxide in the body. Natural Factors L-Arginine provides 1000 mg per capsule and may be helpful for a number of health concerns. Studies show that regular supplementation with L-Arginine may help improve blood flow, blood viscosity, and reduce...

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  10. L-Carnitine (Free Form) 500mg - 60 V-Caps + BONUS

    Natural Factors L-Carnitine Free Form is the same as found in nature, with no signs of synthetic D-Carnitine. L-Carnitine is an amino acid that aids in breaking down fats into energy and helps maintain the normal functioning of the heart, liver and vascular functions. Natural Factors provides the purest form of L-Carnitine in vegetarian capsules. [VCAPS]

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  11. Acetyl-L-Carnitine (Free Form) 500mg - 60 V-Caps + BONUS

    ACETYL-L-CARNITINE (FREE FORM) FROM NATURAL FACTORS Natural Factors Acetyl-L-Carnitine (Free Form) helps the body create energy and is important for heart and brain function, muscle movement, and other body processes. Acetyl-L-Carnitine is a naturally occurring derivative of lysine, allowing the body to quickly process the acetyl-l-carnitine through the bloodstream, and straight to the brain. ...

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  12. L-Glutamine 500mg - 60 Caps

    NATURAL FACTORS L-GLUTAMINE. 500MG L-GLUTAMINE derived from a natural process of fermentation. Natural Factors' L-glutamine provides a full 500mg of this very important amino acid. In a highly digestible capsule form, NF's glutamine is ideal for those using glutamine in a variety of therapeutic applications including digestive health. [CAPSULE]

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    L-GLUTAMINE FROM NATURAL FACTORS L-Glutamine is an essential amino acid for recovering after heavy exercise or critical illness. After strenuous physical activity, drinking Natural Factors Micronized L-Glutamine will protect muscle tissue and support muscular growth and development. Natural Factors Micronized L-Glutamine comes in powder form for easy absorption, with no taste and easily disso...

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  14. L-Glutamine 1,000mg - 60 V-Caps

    NATURAL FACTORS L-GLUTAMINE. 1000MG L-GLUTAMINE derived from a natural process of fermentation. Natural Factors' L-glutamine provides a full 1000mg of this very important amino acid. In a highly digestible capsule form, NF's glutamine is ideal for those using glutamine in a variety of therapeutic applications including digestive health. [CAPSULE]

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  15. L-Lysine 500mg - 90 V-Caps

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  16. L-Lysine 500mg - 180 V-Caps

    500MG LYSINE IN THE ACTIVE "L" FORM. Derived from natural sources, Natural Factors' lysine amino acid supplement provides nutritional support for depressed immune systems. Known for its antiviral properties, lysine is often used to fight cold sores and other viral infections. Your body is unable to manufacture this essential amino acid on its own so it must be ingested from either foods or su...

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  17. L-Lysine 1,000mg - 60 Tabs

    1000MG LYSINE IN THE ACTIVE "L" FORM. Derived from natural sources, Natural Factors' lysine amino acid supplement provides nutritional support for depressed immune systems. Known for its antiviral properties, lysine is often used to fight cold sores and other viral infections. Your body is unable to manufacture this essential amino acid on its own so it must be ingested from either foods or s...

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    1000MG LYSINE IN THE ACTIVE "L" FORM. Derived from natural sources, Natural Factors' lysine amino acid supplement provides nutritional support for depressed immune systems. Known for its antiviral properties, lysine is often used to fight cold sores and other viral infections. Your body is unable to manufacture this essential amino acid on its own so it must be ingested from either foods or s...

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  20. L-Theanine 250mg - 90 V-Caps

    There’s a reason why drinking a cup of tea is so relaxing. True tea (made from the Camella sinensis plant) contains L-theanine, an amino acid that promotes mental calmness. A purified form of L-theanine supported by more than 50 studies demonstrating its safety and efficacy. It safely relaxes but won’t cause drowsiness. Just 1 capsule of Natural Factor's Stress-Relax Mental Calmness provides 25...

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Essential Single Amino Acids: A Detailed Chart

Amino acids are molecules that combine to form proteins. They are the building blocks of life. Roughly 500 Amino acids have been identified in nature, but just 20 of them make up the proteins found in the human body. Eleven of these are made inside the body, while the remaining 9 must be supplied by food and, as needed, through supplementation. Let's explore the chart of necessary amino acids for good health.

A chart of essential amino acids include: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine, all of which are naturally abundant in foods such as beef, poultry, fish, eggs, dairy, soy, quinoa, and buckwheat. Other foods such as nuts, seeds, beans, and certain grains contain some but not all the essential amino acids. Thus, they are “incomplete proteins" and should be combined to supply all 9 essential amino acids.

When your diet is lacking, or if you're looking to stimulate physical performance, boost energy, stimulate muscle protein synthesis, support immunity, enhance digestion, and promote overall excellent health, nothing beats a good amino acid supplement. Besides forming proteins, amino acids are needed to produce enzymes, hormones, and neurotransmitters. They are also involved in numerous metabolic pathways within cells throughout the body. 

Key Benefits of Single Amino Acids for Wellness

  • Boost Muscle Building & Prevent Muscle Breakdown
  • Enhance Physical Performance
  • Help Balance Glycemia
  • Promote Neurotransmitter and Hormone Synthesis
  • Stimulate Energy Production

Determining the Need: Who Benefits from Single Amino Acids?

Amino acids may be recommended as a complex, which has the advantage of not throwing off your amino acid balance. Still, individual amino acids may also be recommended depending on a person's health status and goals and may be ideal for specific health challenges. Here's a chart of amino acids and which health concerns they support:

  • Tryptophan may be recommended to help regulate the sleep-wake cycle, appetite, sleep, mood, and pain.

  • Carnitine may be used to aid weight loss, improve exercise performance, and enhance a sense of well-being

There is a wide range of single amino acid supplements available on the market, each offering its own unique health benefits. For guidance on which amino acid(s) may be advantageous for you, speak to the knowledgeable staff at your favourite health food store or online retailer.

Varieties of Single Amino Acids: Potency & Formats Explored

Single amino acid supplements are widely available in capsules and powders and in fun gummy form for those suffering from pill fatigue. Amino acids are also frequently added to protein powders to enhance performance, boost muscle building, and speed post-exercise recovery. Each amino acid is offered in its own optimal dosing range. Always refer to the label instructions on your product to determine which dose is best for you. 

Insights & Considerations: Making the Most of Single Amino Acids

Most amino acid supplements, whether in combination or isolated form, are well tolerated and cause few side effects. However, if your dose is too high, you may experience certain side effects such as:

  • Gastrointestinal distress, including bloating
  • Abdominal pain
  • Changes in eating patterns
  • Diarrhea
  • Drop in blood pressure

Amino acid supplements should ideally be taken on an empty stomach between meals to get the most bang for your buck. However, when it comes to sports nutrition, athletes and strength trainers can take their amino acid supplement either before, during, after training, or any other time throughout the day when a meal or a shake isn’t possible or preferred.

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