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Displaying 1 to 15 of 6569 products View: Showcase | List 1  |  2  |  3  |  4  |  5    Next >    [438]
L-Tryptophan  
L-Tryptophan - Doctor's Best
          Doctor's Best L-Tryptophan products contain Ajinomoto TryptoPure. Tryptophan is an essential amino acid readily converted by the body to the neurotransmitter serotonin. Able to cross the blood-brain barrier, L-tryptophan is altered by enzymes to first form the intermediate amino acid 5-HTP and then serotonin. It is also the metabolic precursor to melatonin and to the B vitamin niacin. Supplementin... [Read More]
  Suggested: $33.99

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$22.99

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Vitamin B6  
Vitamin B6 - Life Extension
          Vitamin B6, or pyridoxine, is an important component of the coenzyme PLP, which metabolizes amino acids. Because of its amino acid transfer ability, the body can produce non-essential amino acids from available amino groups, as well as metabolize protein and urea. Vitamin B6 is essential because of its participation in more than 100 enzymatic reactions, including protein metabolism, conversion of ... [Read More]
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100 vegetarian capsule, 250 mg:   $6.79 Add to Cart
100 capsule, 250 mg:   $6.79 Add to Cart
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L-Tryptophan  
L-Tryptophan - Jarrow Formulas
          Jarrow Formulas L-Tryptophan is an essential amino acid and hence cannot be synthesized by the body, but must be obtained from food or supplements. Because L-tryptophan is converted to serotonin (5-hydroxytryptamine) and melatonin in the body, it plays an important role in promoting relaxation, restful sleep and positive mood. Jarrow Formulas L-Tryptophan may also help in reducing carbohydrate cra... [Read More]
  Suggested: $21.95

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$14.89

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Vitamin C & L-Lysine  
Vitamin C & L-Lysine - Onnit
          Onnit Labs proudly uses only the very best in standardized nutritionals. Onnit Vitamin C & L-Lysine is a staple supplement for seasonal health. Onnit Vitamin C & L-Lysine contains 872 mg of Vitamin C per serving. Onnit Vitamin C and L-Lysine contains no soy or gluten. Adequate amounts of Vitamin C and lysine can be obtained through healthy diet. However, elevated doses of these compounds are well ... [Read More]
  Suggested: $8.95

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$7.89

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L-Tryptophan with Coenzyme B-6  
MAP
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:   $6.30 Add to Cart
60 tablet:   $10.52 Add to Cart
120 tablet:   $20.28 Add to Cart
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L-Tryptophan  
L-Tryptophan - California Natural
          L-Tryptophan is an essential amino acid a component of many plant and animal proteins. Essential amino acids are not synthesized by the body and must be obtained in the diet. It is a precursor from which our brains make serotonin, which is then used to calm you down and make you sleepy. L-tryptophan, in substantial quantities, is a natural sedative. Tryptophan also helps in niacin (B vitamins) pro... [Read More]
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30 capsules:   $10.49 Add to Cart
60 capsules:   $20.29 Add to Cart
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Vitamin B6  
Vitamin B6 - FoodScience of Vermont
          Provides 300 mg of Vitamin B6 (Pyridoxine) in a prolonged release tablet.
  Suggested: $16.00

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$10.79

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L-Tryptophan  
MAP
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:   $2.29 Add to Cart
30 capsule:   $6.30 Add to Cart
30 Tablet:   $6.30 Add to Cart
60 capsule:   $10.52 Add to Cart
60 tablet:   $10.52 Add to Cart
90 capsule:   $15.01 Add to Cart
120 capsule:   $20.28 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-Tyrosine with Vitamin B-6  
L-Tyrosine with Vitamin B-6 - Anabol Naturals
          L-Tyrosine for Athletic Performance, Longevity and Healthy Aging Anabol Naturals L-Tyrosine is a pharmaceutical grade pure crystalline free form amino acid. L-Tyrosine crosses the blood brain barrier and boosts the neurotransmitters dopamine, norepinephrine, epinephrine, hormones which are depleted by stress, overwork and some medications. By replenishing norepinephrine in the brain, mental en... [Read More]
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100 capsule:   $8.99 Add to Cart
500 capsule:   $44.49 Add to Cart
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Safflower Oil with Vitamin B6  
Safflower Oil with Vitamin B6 - Sundown Naturals
          Safflower seed oil supplies linoleic acid, which is an Omega 6 polyunsaturated fatty acid. Vitamin B-6 plays an important role in protein and energy metabolism. No artificial color, flavor or sweetener, preservatives, sugar, starch, milk, lactose, gluten, wheat, yeast, shellfish, sodium free. Laboratory Tested.
  Suggested: $16.09

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$13.99

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L-Tryptophan  
L-Tryptophan - Natural Balance
          L-Tryptophan is an essential amino acid found in mother's milk and many protein foods including turkey, fish, nuts, beans, dairy and eggs. Because it cannot be synthesized by the body, L-Tryptophan must be obtained in the diet. In the body it functions as a precursor to serotonin, the calming neurotransmitter. Healthy levels of serotonin are important for positive mood, restful sleep and balanc... [Read More]
  Suggested: $29.59

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$20.79

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Serene Science L-Tryptophan  
MAP
Serene Science 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 mela-tonin and serotonin, hormones involved with mood and stress response and sleep/wake peroids. 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 niaci... [Read More]
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60 capsule:   $14.81 Add to Cart
120 capsule:   $28.53 Add to Cart
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L-Tryptophan  
L-Tryptophan - Zahler
          Zahler's L-Tryptophan is used by the brain to produce serotonin, a neurotransmitter that is necessary for normal sleep. Getting enough sleep is crucial for a healthy immune and nervous system, in addition to a host of physiological effects that a lack of sleep can cause. L-Tryptophan also helps with migraines, depression, mood swings, insomnia, appetite suppression, pain, aggression, nightmares, a... [Read More]
  Suggested: $29.95

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$21.89

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L-Tryptophan Powder  
L-Tryptophan Powder - NOW
          Supports RelaxationPharmaceutical Grade (USP)Encourages Positive MoodPromotes Restful Sleep*Vegetarian Product L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and stress response. L-Tryptophan helps support relaxation, sleep, positive mood and immune function.* As an essential amino acid, it is not synthe... [Read More]
  Suggested: $29.99

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$19.49

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L-Tryptophan  
L-Tryptophan - NOW
          Supports RelaxationFast-Acting DisintegrationEncourages Positive MoodPromotes Restful Sleep*Pharmaceutical Grade (USP)Vegetarian Formula L-Tryptophan is an essential amino acid important in human nutrition for the synthesis of melatonin and serotonin, hormones regulating mood and stress response. L-Tryptophan helps support relaxation, sleep, positive mood and immune function.* As an essential am... [Read More]
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60 vcaps, 500 mg:   $12.49 Add to Cart
60 tablets, 1000 mg:   $21.79 Add to Cart
120 vcaps, 500 mg:   $22.99 Add to Cart
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Displaying 1 to 15 of 6569 products 1  |  2  |  3  |  4  |  5    Next >    [438]
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L-5-HTP
L-5-HTP
Your Price: $22.49
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