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Items 121 to 144 of 352 total
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L-Arginine  
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L-Arginine - Source Naturals
          L-Arginine is a crystalline, free-form amino acid. It is an important factor in muscle metabolism and works to transport, store, and excrete nitrogen. It is a precursor for nitric oxide, which promotes increased circulation by relaxing blood vessels.
 
Suggested: $16.50
$8.75
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L-Arginine L-Citrulline Complex  
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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:   $2.62 Add to Cart
60 tablet:   $9.16 Add to Cart
120 tablet:   $15.49 Add to Cart
240 tablet:   $31.39 Add to Cart
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L-Aspartic Acid  
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L-Aspartic Acid - Source Naturals
          L-Aspartic Acid plays a vital role in energy production. It is one of the components neccessary to move high-energy NADH molecules from the main body of a cell to its mitochondria, or primary energy-production areas. Once there, the NADH is used to generate ATP, the energy fuel that powers all the cell's activities. Besides helping with energy production, L-Aspartic acid is a major excitatory neur... [Read More]
 
Suggested: $8.98
$4.79
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L-Carnitine  
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L-Carnitine - Source Naturals
          L-Carnitine is important for providing energy to muscles. It carries fatty acids into the mitochondria of each cell, where they are oxidized and stored as ATP, a prime energy fuel.
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30 capsule, 250 mg:   $5.78 Add to Cart
30 capsule, 500 mg:   $9.75 Add to Cart
60 capsule, 250 mg:   $10.80 Add to Cart
60 capsule, 500 mg:   $18.41 Add to Cart
120 capsule, 500 mg:   $35.79 Add to Cart
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L-Carnosine  
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L-Carnosine - Source Naturals
          L-Carnosine is a dipeptide composed of the amino acids beta-alanine and L-histidine. It occurs naturally in muscle, brain and other tissues in high concentrations. In in vitro studies, L-carnosine reduced glycation, a process in which DNA and protein are damaged by glucose. The end products of glycation are highly reactive molecules called advanced glycation end products (AGEs), which can further ... [Read More]
 
Suggested: $37.98
$19.99
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L-Citrulline  
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L-Citrulline - Source Naturals
          L-Citrulline is a natural amino acid that supports sports performance and good health, while at the same time helping the liver detoxify. L-Citrulline helps the body rid itself of ammonia, a by-product of intense exercise. This clearing enables the body to recover after a workout, and it frees ATP energy for enhanced uses such as respiration and signal transduction.
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30 Tablet:   $8.52 Add to Cart
60 capsule:   $10.99 Add to Cart
60 tablet:   $14.20 Add to Cart
120 capsule:   $15.78 Add to Cart
100 gm:   $19.47 Add to Cart
120 tablet:   $27.36 Add to Cart
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L-Glutamine  
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L-Glutamine - Source Naturals
          L-Glutamine, a free-form amino acid, can be converted to glutamic acid. Glutamic acid is a precursor to the important inhibitory neurotransmitter GABA (gamma-aminobutyric acid). L-Glutamine also plays an important role in ammonia disposal.
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50 capsule:   $4.19 Add to Cart
50 tablet:   $4.19 Add to Cart
100 capsule:   $7.99 Add to Cart
100 gm:   $7.49 Add to Cart
100 tablet:   $7.99 Add to Cart
453.59 gm:   $28.99 Add to Cart
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L-Leucine  
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L-Leucine - Source Naturals
          L-Leucine is an essential amino acid, specifically classified as a "branched-chain amino acid" (BCAA). BCAAs, especially leucine, stimulate muscle protein synthesis and may be the major fuel involved in anabolic reactions. This makes them especially important for body builders and other athletes in sports that demand explosive strength.
 
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$15.38
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L-Lysine  
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L-Lysine - Source Naturals
          L-Lysine is an essential free-form amino acid which acts as a precursor for several other amino acids, including L-carnitine (needed for fat metabolism). L-Lysine is crucial to the formation of collagen, a major part of the body's connective tissues. L-Lysine also contributes to energy production when converted to acetyl coenzyme A, one of the principal fuels for the Krebs Cycle.
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50 tablet, 500 mg:   $3.69 Add to Cart
50 tablet, 1000 mg:   $4.09 Add to Cart
100 tablet, 500 mg:   $5.05 Add to Cart
100 capsule, 500 mg:   $5.05 Add to Cart
3.5 oz:   $5.05 Add to Cart
100 tablet, 1000 mg:   $7.39 Add to Cart
200 capsule, 500 mg:   $8.99 Add to Cart
250 tablet, 500 mg:   $12.15 Add to Cart
200 tablet, 1000 mg:   $13.03 Add to Cart
3 x 100 tablet, 1000 mg:   $18.74 Add to Cart
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L-Methionine  
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L-Methionine - Source Naturals
          L-Methionine is an essential sulfur-containing, free-form amino acid. It contributes to the synthesis of S-adenosyl-L-methionine (SAMe), which is neccessary for normal brain function, and L-cysteine, which is a component of glutathione, an important antioxidant molecule in the body. Methionine is also a transporter of the antioxidant mineral, selenium.
 
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L-Ornithine  
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L-Ornithine - Source Naturals
          L-Ornithine, a free-form crystalline amino acid, is a precursor of arginine, which is necessary for the synthesis of creatine, an important energy provider for muscles. In addition, L-Ornithine is a key compound in the urea cycle, one of the body's main processes for eliminating ammonia.
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50 capsule:   $6.98 Add to Cart
3.5 oz:   $12.79 Add to Cart
100 capsule:   $13.15 Add to Cart
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L-Phenylalanine  
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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:   $15.08 Add to Cart
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L-Proline/L-Lysine  
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L-Proline/L-Lysine - Source Naturals
          L-Lysine is one of the 9 essential amino acids that cannot be made in the body. It is the basic raw material for carnitine synthesis. L-Proline can be made in the body, but low protein/vegetarian diets may not always promote optimal L-proline production. L-Lysine and L-proline amino acids are the precursors of hydroxylysine (HL), and hydroxyproline (HP), two constituents of collagen. Collagen is a... [Read More]
 
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L-Proline Powder  
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L-Proline Powder - Source Naturals
          L-Proline is an amino acid involved in the production of collagen and cartilage and may help support healthy joints and a healthy musculoskeletal system. L-Proline can be made in the body, but low protein/vegetarian diets may not always promote optimal production.
 
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$7.36
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L-Theanine  
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L-Theanine - Source Naturals
          L-Theanine is a unique amino acid found almost exclusively in the tea plant (Camellia sinensis) and is the primary ingredient contributing to the unusual taste of green tea. Animal studies have shown that L-theanine crosses the blood brain barrier, increases dopamine and GABA levels in the brain, and inhibits the stimulatory properties of caffeine. Human studies have shown that taking L-theanine r... [Read More]
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30 Tablet:   $9.73 Add to Cart
30 capsule:   $9.10 Add to Cart
60 tablet:   $15.99 Add to Cart
60 capsule:   $16.49 Add to Cart
120 capsule:   $32.49 Add to Cart
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L-Tryptophan  
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L-Tryptophan - Source Naturals
          The essential amino acid l-tryptophan helps support relaxation, restful sleep, and positive mood. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response and sleep/wake cycles. l-Tryptophan also supports immune functions because it is the body s precursor to the kynurenines that regulate immunity. If needed, l-tryptophan converts to ni... [Read More]
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8 tablet:   $2.71 Add to Cart
30 capsule:   $6.51 Add to Cart
30 Tablet:   $6.30 Add to Cart
60 capsule:   $11.50 Add to Cart
60 tablet:   $11.49 Add to Cart
90 capsule:   $16.99 Add to Cart
120 capsule:   $21.90 Add to Cart
50 gram:   $20.52 Add to Cart
120 tablet:   $26.49 Add to Cart
100 gram:   $40.00 Add to Cart
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L-Tryptophan with Coenzyme B-6  
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L-Tryptophan with Coenzyme B-6 - Source Naturals
          The essential amino acid L-tryptophan helps support relaxation, restful sleep, and a positive outlook. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. This tryptophan includes the activated coenzyme form of vitamin B-6, called P-5-P, that is required to convert tryptophan to serotonin. L-Tryptophan also supports immune functions be... [Read More]
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30 Tablet:   $19.88 Add to Cart
60 tablet:   $11.49 Add to Cart
120 tablet:   $22.39 Add to Cart
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L-Tyrosine  
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L-Tyrosine - Source Naturals
          L-Tyrosine is a free-form amino acid which rapidly crosses the blood-brain barrier. It is a precursor for the neurotransmitters dopamine, norepinephrine and epinephrine, for thyroid hormones, and for enkephalins, special peptides which subdue messages of physical discomfort. L-Tyrosine is also a precursor for the protective skin pigment melanin.
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50 tablet:   $4.19 Add to Cart
100 tablet:   $8.49 Add to Cart
3.5 oz:   $10.99 Add to Cart
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Lecithin  
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Lecithin - Source Naturals
          Lecithin is a natural substance found in cell membranes and is manufactured in the liver from dietary choline. It contains a mixture of phosphatides, including phosphatidyl choline, an important precursor to the main neurotransmitter, acetylcholine. In addition, the body utilizes lecithin both for the proper formation of bile (the body's main emulsifying compound), and as an emulsifying agent itse... [Read More]
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100 gelcap:   $4.96 Add to Cart
200 gelcap:   $8.95 Add to Cart
500 gelcap:   $20.70 Add to Cart
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Life Force Multiple  
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Life Force Multiple - Source Naturals
          Life Force Multiple, the most complete daily formula available, is scientifically Bio-Aligned to deliver essential cellular energy and balance to vital systems and organs. For lifelong support to your brain, skin, eyes, immune, circulatory, antioxidant and energy systems, take LIFE FORCE and join the Wellness Revolution of preventive health care.
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30 Tablet:   $7.88 Add to Cart
60 capsule:   $9.39 Add to Cart
60 tablet:   $13.03 Add to Cart
120 capsule:   $15.59 Add to Cart
90 tablet:   $19.17 Add to Cart
120 tablet:   $25.30 Add to Cart
180 tablet:   $37.56 Add to Cart
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Liver Guard  
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Liver Guard - Source Naturals
          This product has been specially formulated to provide nutrients essential for healthy liver function.
 
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$16.79
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Lutein  
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Lutein - Source Naturals
          Lutein is a potent antioxidant carotenoid found in abundance in fruits and green leafy vegetables. Lutein is also one of the dominant pigments found in the macular region of the retina in the eye. In the macula, lutein is selectively accumulated from plasma and filters out visible blue light. Recent studies suggest this filtering process serves to protect the retina from photic damage or other oxi... [Read More]
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45 capsule:   $5.49 Add to Cart
30 capsule:   $8.95 Add to Cart
90 capsule:   $9.97 Add to Cart
60 capsule:   $17.12 Add to Cart
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Lycopene  
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Lycopene - Source Naturals
          Lycopene is a carotenoid pigment which gives tomatoes their red color and has been the focus of recent scientific research. Lycopene is one of the four main carotenoids normally found in human blood and tissue. Studies show that lycopene is a scavenger of singlet oxygen, offering powerful antioxidant protection. The body cannot convert lycopene into vitamin A; thus lycopene is reserved exclusively... [Read More]
 
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$18.99
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Maca  
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Maca - Source Naturals
          Source Naturals Maca is a standardized extract of this hardy and highly valued plant. Maca is grown at high elevations in the Andes region of central Peru using no fertilizers or pesticides. It has been used for centuries by indigenous Peruvians as a food source and based upon traditional Peruvian folk belief, for increasing stamina and energy. Because of this traditional use, maca has been called... [Read More]
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30 Tablet:   $4.18 Add to Cart
60 tablet:   $6.30 Add to Cart
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