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NOW Foods
L-Tryptophan, 500 mg, 120 Veg Capsules
Supports RelaxationEncourages Positive MoodPromotes Restful SleepNon-GMOA Dietary SupplementVegetarian/VeganKosherAmino AcidsFamily Owned Since 1968GMP Quality AssuredHalalL-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function. Every lot of NOW® L-Tryptophan is tested to be free of Peak E and microbial contamination.
L-Tryptophan, 500 mg, 120 Veg Capsules
Source Naturals
L-Tryptophan, 500 mg, 60 Capsules
Dietary Supplement Mood, Relaxation, SleepThe 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 niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
L-Tryptophan, 500 mg, 60 Capsules
NOW Foods
L-Tryptophan, Double Strength, 1,000 mg, 60 Tablets
Supports RelaxationEncourages Positive MoodPromotes Restful SleepNon-GMOA Dietary SupplementVegetarian/VeganKosherAmino AcidsFamily Owned Since 1968GMP Quality AssuredTryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function. Every lot of NOW® L-Tryptophan is tested to be free of peak E and microbial combination.NOW® Double Strength L-Tryptophan has twice the L-tryptophan (1000 mg per tablet) as in our regular strength product (500 mg per capsule).
L-Tryptophan, Double Strength, 1,000 mg, 60 Tablets
Bluebonnet Nutrition
L-Tryptophan, 500 mg, 60 Vegetable Capsules
Made with Non-GMO IngredientsAjipure® Amino AcidsVeganFree-Form Amino AcidDietary SupplementKosher ParveGluten FreeBluebonnet's L-Tryptophan 500 mg Vegetable Capsules are formulated with a vegetarian source of the free-form amino acid L-tryptophan called TryptoPure® from Ajinomoto to help support a positive mood, a sense of relaxation, as well as to reduce occasional sleeplessness.
L-Tryptophan, 500 mg, 60 Vegetable Capsules
Source Naturals
L-Tryptophan, 500 mg, 120 Tablets
Dietary SupplementMood, Relaxation, SleepNon-GMO ValidatedSuitable for VegetariansThe essential amino acid L-tryptophan helps support relaxation, restful sleep, and feeling better. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. 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 niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
L-Tryptophan, 500 mg, 120 Tablets
Source Naturals
L-Tryptophan with Coenzyme B-6, 500 mg, 60 Tablets
Dietary Supplement Mood Enhancement and Sleep 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 because it is the body's precursor to the kynurenines that regulate immunity. If needed, L-tryptophan converts to niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
L-Tryptophan with Coenzyme B-6, 500 mg, 60 Tablets
NOW Foods
L-Tryptophan Powder, 2 oz (57 g)
Supports RelaxationEncourages Positive MoodPromotes Restful SleepNon-GMOA Dietary SupplementVegetarian/VeganAmino AcidsFamily Owned Since 1968GMP Quality AssuredL-Tryptophan is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function. Every lot of NOW® L-Tryptophan is tested to be free of Peak E and microbial contamination.
L-Tryptophan Powder, 2 oz (57 g)
L-Tryptophan Powder, 2 oz (57 g)
$ 19.62 $ 20.87 6% Off
Source Naturals
L-Tryptophan, 166 mg, 60 Tablets
Dietary SupplementMood, Relaxation, SleepNon GMO ValidatedSuitable for VegetariansThe essential amino acid L-tryptophan helps support relaxation, restful sleep, and feeling better. It plays a part in the synthesis of both melatonin and serotonin, hormones involved with mood and stress response. 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 niacin in the body, which supports circulation, a healthy nervous system, the metabolism of food, and the production of hydrochloric acid for the digestive system. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
L-Tryptophan, 166 mg, 60 Tablets
Doctor\'s Best
L-Tryptophan , 500 mg, 90 Veggie Caps
Science-Based Nutrition™Helps Promote Normal Restful Sleep, Healthy Mood and BehaviorDietary SupplementNon-GMO / Gluten-Free / Soy Free / VeganL-Tryptophan provides this essential amino acid (protein building block) that is not synthesized by the body and must be obtained in the diet or supplementation. It is also essential in the production of niacin, which is then metabolized into serotonin and melatonin in the brain. These neurotransmitters exert a calming effect and encourage better cognitive focus, a positive mood, and restful sleep.Helps exert a calming effectHelps encourage better cognitive focus, a positive mood, and restful sleep
L-Tryptophan , 500 mg, 90 Veggie Caps
Source Naturals
L-Tryptophan, 1,000 mg, 90 Tablets
Dietary SupplementWith Vitamin B-6Mood, Relaxation, SleepThe essential amino acid L-tryptophan is the precursor for the synthesis of melatonin and serotonin, a hormone and a neurotransmitter involved with mood and stress response. It helps support relaxation, restful sleep, and a positive outlook. This tryptophan tablet includes vitamin B-6, which is required to convert tryptophan to serotonin. If needed, L-tryptophan is converted to niacin in the body, an important B vitamin. Source Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.
L-Tryptophan, 1,000 mg, 90 Tablets
Life Extension
Optimized Tryptophan Plus, 90 Vegetarian Capsules
Gluten FreeNon-GMO LE CertifiedSleep Enhancement and Stress ReductionDietary SupplementA lack of sleep can cause stress, and stress can lead to a lack of sleep. Break the cycle and support healthy sleep with our Optimized Tryptophan Plus. It provides 1,000 mg of L-tryptophan that has undergone rigorous manufacturing processes to ensure quality and purity.Optimized Tryptophan Plus supports healthy sleep patterns and helps modulate the biological response to stress.Optimized Tryptophan Plus BenefitsSupports healthy sleep & mood by maintaining healthy tryptophan levels Helps modulate your biological response to stress Promotes satiety for healthy weight management Includes nutrients to encourage healthy tryptophan activityOptimized Tryptophan Plus is made with high-quality L-tryptophan, as well as nutrients such as lysine, niacinamide and more to help maintain healthy tryptophan activity in the body.More facts about Optimized Tryptophan PlusSerotonin is a neurotransmitter in the brain associated with positive mood and restful sleep. Your body requires the essential amino acid tryptophan to produce and maintain healthy serotonin levels. But your body cannot make tryptophan on its own.Sleep, stress response, and satietyStudies indicate that tryptophan promotes healthy sleep patterns and mood. It also encourages the body’s healthy response to stress. And tryptophan and serotonin can help support satiety, the feeling of being “full.”L-tryptophan augmented with unique nutrientsOptimized Tryptophan Plus provides 1,000 mg of L-tryptophan per serving. Our L-tryptophan has undergone a rigorous manufacturing process to ensure quality and purity.This formula also provides lysine, niacinamide and extracts of hops and rosemary, which may help support tryptophan benefits in the body.
Optimized Tryptophan Plus, 90 Vegetarian Capsules
Onnit
New Mood, Mood & Relaxation, 30 Capsules
Formulated to Help Mood & RelaxationDaily Stress SupportDietary SupplementGluten FreeSoy FreeCaffeine FreeSupports Mood BalanceSupports Serotonin ProductionSupports Daily CalmCombining the two raw building blocks of serotonin, L-tryptophan and 5-HTP, with a converting catalyst, vitamin B6, New Mood™ provides the nutrients to help the body optimize serotonin levels.
New Mood, Mood & Relaxation, 30 Capsules
Life Extension
L-Tryptophan, 500 mg, 90 Vegetarian Capsules
Gluten FreeNon GMO LE Certified Essential Amino Acid for Natural Sleep Enhancement and Stress ReductionDietary SupplementSerotonin is a neurotransmitter in the brain associated with positive moods and restful sleep. Your body requires the essential amino acid tryptophan to produce and maintain healthy serotonin levels. Our formula delivers 500 mg of L-tryptophan that has undergone rigorous manufacturing processes to ensure the highest quality and purity.L-Tryptophan promotes healthy sleep patterns and mood, while encouraging the body’s healthy response to stress.L-Tryptophan Benefits Supports healthy sleep & mood Helps modulate your body’s natural stress response Promotes satietyOur premium-quality L-Tryptophan formula helps maintain healthy tryptophan levels in the body. Tryptophan promotes healthy sleep and mood, encourages a healthy stress response and more.More facts about L-Tryptophan Serotonin is a neurotransmitter in the brain associated with positive moods and restful sleep. Your body requires the essential amino acid tryptophan to produce and maintain healthy serotonin levels.4 But your body cannot make tryptophan on its own.Sleep, stress response and satiety Studies indicate that tryptophan promotes healthy sleep patterns and mood. It also encourages the body’s healthy response to stress And L-tryptophan can help support satiety, the feeling of being full.This supplement helps maintain healthy tryptophan levels with 500 mg of L-tryptophan per serving. Our L-tryptophan has undergone rigorous manufacturing processes to ensure high quality and purity.
L-Tryptophan, 500 mg, 90 Vegetarian Capsules
Amazing Nutrition
L-Tryptophan, 1,000 mg, 120 Tablets
Dietary Supplement Encourages Positive Mood & Restful Sleep Supports Immune Function Helps to Improve Circulation & Reduce Stress GMP Good Manufacturing Practice Quality ProductWe believe that Amazing Nutrition® is the key for Healthy Living. We are passionate about bringing you the finest selection of products which can perfectly complement a healthy diet and active lifestyle. L-Tryptophan is an essential amino acid that the body requires to synthesize proteins and specialized molecules. It is critical for the production of serotonin and melatonin hormones that support positive mood, relaxation, healthy sleep patterns and stress relief. L-Tryptophan also helps support immune functions, as it is the body´s precursor to the kynurenines which regulate immunity. If needed, L-Tryptophan converts to niacin in the body, which supports circulation, healthy nervous system, metabolism of foods, and production of hydrochloric acid for the digestive system. 
L-Tryptophan, 1,000 mg, 120 Tablets
Zahler
L-Tryptophan, Purified L-Tryptophan, 500 mg, 60 Capsules
Advanced Nutrition by ZahlerHigh Potency Serotonin EnhancerMind & SpiritDietary SupplementFeel Better, Everyday™Kosher ParveThis Product is Manufactured in a GMP Certified FacilityNon-GMOGluten FreeDairy FreeSoy FreeVegetarian FriendlyHigh Potency Serotonin EnhancerL-Tryptophan is used by the brain as a precursor to serotonin and melatonin, neurotransmitters that are necessary for normal sleep. Adequate sleep is crucial for healthy immune and nervous system function. In addition, changes in the level of serotonin in the brain can impact mood and satiety. 
L-Tryptophan, Purified L-Tryptophan, 500 mg, 60 Capsules
Jarrow Formulas
L-Tryptophan, 500 mg, 60 Veggie Caps
Supports Serotonin Production for Relaxation, Positive Mood, & SleepDietary SupplementNon GMO Certified by NSFVeganVeggie CapL-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.L-tryptophan may also help in reducing carbohydrate cravings.Jarrow Formulas® L-Tryptophan TryptoPure® is manufactured at a GMP facility via fermentation from vegetable materials.
L-Tryptophan, 500 mg, 60 Veggie Caps