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Displaying 1 to 15 of 859 products View: Showcase | List 1  |  2  |  3  |  4  |  5    Next >    [58]
L-Phenylalanine  
L-Phenylalanine - Anabol Naturals
          L-Phenylalanine for Athletic Performance, Longevity and Healthy Aging Anabol Naturals L-Phenylalanine is a pharmaceutical grade pure crystalline free from amino acid that is a precursor of L-Tyrosine and various neurotransmitters and hormones. L-Phenylalanine is converted to L-Tyrosine, which then becomes L-Dopa. L-Dopa is then converted to epinephrine and norepinephrine, key neurotransmitte... [Read More]
  Suggested: $19.95

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L-Phenylalanine  
MAP
L-Phenylalanine - Source Naturals
          L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine, and to a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes L-dopa, which converts to norepinephrine, a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (Phenylethylamine), another important neurotransmitter.
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50 tablet:   $4.09 Add to Cart
100 tablet:   $6.89 Add to Cart
3.5 oz:   $14.99 Add to Cart
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L-Phenylalanine  
L-Phenylalanine - Twinlab
          Provides effective support for healthy mood and other mental function. Get a nutritional boost for mental health with L-Phenylalanine. A precursor of l-tyrosine, this essential amino acid supports the neurotransmitters that help regulate mood and other mental functions.
  Suggested: $13.95

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L-Phenylalanine  
L-Phenylalanine - Thompson Nutritional
          L-Phenylalanine is an essential, nine-carbon amino acid and is a precursor to the amino acid tyrosine. Because tyrosine is necessary for the synthesis of proteins and the production of the neurotransmitters dopamine and norepinephrine, phenylalanine is an extremely important nutrient that must be obtained through the diet or supplementation. As the building blocks of protein, amino acids are ... [Read More]
  Suggested: $4.79

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$3.19

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L-Phenylalanine  
L-Phenylalanine - Nature's Life
          Phenylalanine, an essential amino acid, is the precursor of several key compounds in the brain and nervous system that help maintain positive moods and support nerve sensors.
  Suggested: $10.59

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L-Phenylalanine  
L-Phenylalanine - NOW
          Nervous System SupportSupports Positive Mood*Free-Form L-Phenylalanine is an essential amino acid that can be readily converted into the amino acid tyrosine. Because tyrosine is necessary for the synthesis of proteins and the production of the neurotransmitters dopamine and norepinephrine, phenylalanine is an extremely important nutrient that must be obtained through the diet or supplementation.*... [Read More]
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60 capsules:   $5.09 Add to Cart
120 capsules:   $9.49 Add to Cart
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L-Arginine L-Ornithine L-Lysine  
L-Arginine L-Ornithine L-Lysine - Good N' Natural
          Good 'N Natural's L-Arginine/L-Ornithine/L-Lysine dynamic product is made up of three of the most popular amino acids for exercise supplementation. L-Arginine is an important building block of protein, while L-Ornithine is involved in metabolism.** L-Lysine is an essential amino acid used for the production of collagen.**Together, these ingredients give you an excellent amino acid foundation that ... [Read More]
  Suggested: $9.50

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L-Arginine & L-Ornithine Fuel  
L-Arginine & L-Ornithine Fuel - Twinlab
          Twinlab L-Arginine and L-Ornithine delivers 2 complementary free form amino acids in one easy to swallow capsule. L-Arginine is a precursor of nitric oxide, which increases blood flow and may aid in the delivery of important nutrients to working muscles and assist with metabolic waste product removal. L-Ornithine is synthesized from Arginine and is a precursor of citrulline, proline and glutamic a... [Read More]
  Suggested: $31.33

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L-Carnitine with CoQ-10 plus L-Arginine  
L-Carnitine with CoQ-10 plus L-Arginine - Dynamic Health
           All Natural Ingredients 100% Pure Liquid Formula Readily Absorbable Boost Energy Level Improves General Metabolism Help Strengthen Bones & Teeth Helps Heart & Muscle Functions Strengthen The Immune System Aids in the weight loss process Dynamic Health Laboratories' unique blend of Liquid L-Carnitine, CoQ-10 and L-Arginine is a delicious way to promote the activity of free radical scavenging a... [Read More]
  Suggested: $22.79

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L-Arginine & L-Ornithine  
L-Arginine & L-Ornithine - Twinlab
          TwinLab L-Arginine & L-Ornithine capsules are easier to swallow and assimilate. Well tolerated by most highly allergic individuals.No tablet binders, coating or colorings.Free of most common allergens such as corn, yeast, rice, barley, wheat, lactose (milk sugar) and all milk, citrus, fish and egg products.No added flavorings, sugars, salt, artificial sweeteners, colorings, preservatives or salicy... [Read More]
  Suggested: $23.95

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D-Phenylalanine  
D-Phenylalanine - Doctor's Best
          Doctor's Best Best D-Phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. D- and L-phenylalanine are structural mirror images of each other. A small amount of D-phenylalanine may be converted to L-phenylalanine in the body. D-phenylalanine is reported to inhibit an enzyme that degrades enkephalins, which are naturally occurring substances in the body that ... [Read More]
  Suggested: $27.99

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L-Arginine L-Citrulline Complex  
MAP
L-Arginine L-Citrulline Complex - Source Naturals
          L-Arginine and L-citrulline are two amino acids bundled into a single powerful supplement. L-Arginine is an important factor in muscle metabolism and is a precursor for nitric oxide, which promotes increased circulation by relaxing blood vessels. L-Citrulline helps the body rid itself of ammonia, a by-product of exercise. This clearing enables the body to recover after a workout.
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10 tablet:   $2.59 Add to Cart
60 tablet:   $8.89 Add to Cart
120 tablet:   $15.49 Add to Cart
240 tablet:   $31.39 Add to Cart
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Acetyl L-Carnitine Arginate  
Acetyl L-Carnitine Arginate - Jarrow Formulas
          Jarrow Formuals Acetyl-L-Carnitine Arginate is a novel molecular combination of the amino acids Acetyl-L-Carnitine and L-Arginine. Acetyl-L-Carnitine is a more bioavailable form of L-carnitine, an amino acid found in high concentration in human brain, nerve, heart, liver and sperm cells. Acetyl-L-Carnitine supports energy production, via the metabolism of fatty acids to yield the universal energy ... [Read More]
  Suggested: $39.95

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Acetyl L-Carnitine  
Acetyl L-Carnitine - Jarrow Formulas
          Jarrow Formulas Acetyl-L-Carnitine is an amino acid found in high concentration in human brain, nerve, heart, liver and sperm cells. Jarrow Formuals Acetyl L-Carnitine supports energy production via the metabolism of fatty acids to yield the universal energy molecule ATP. As an antioxidant, Acetyl-L-Carnitine helps to protect neurons from damage caused by superoxide radicals. Biosint is a trademar... [Read More]
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60 capsule, 250 mg:   $9.89 Add to Cart
60 capsule, 500 mg:   $13.99 Add to Cart
120 capsule, 250 mg:   $15.99 Add to Cart
120 capsule, 500 mg:   $21.89 Add to Cart
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Acetyl-L-Carnitine  
Acetyl-L-Carnitine - Doctor's Best
          Doctor's Best Acetyl-L-Carnitine (ALC) is a naturally occurring form of L-Carnitine, a vitamin-like nutrient synthesized in the body from the amino acids lysine and methionine. ALC plays a key role in the production of acetylcholine, an important neurotransmitter for brain and nerve cell function. The Acetyl-L-Carnitine in this product is derived from a base of pharmaceutical grade L-Carnitine man... [Read More]
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60 capsule:   $13.49 Add to Cart
120 capsule:   $24.49 Add to Cart
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