l-tryptophan supplements
Our pick
View at Vita Cost →
Vitacost, L-Tryptophan, 500 mg, 120 Capsules
Vita Cost
500 mg per serving
$9.74
Most l-tryptophan per dollar of the 80 products here · contains nothing else
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
Comparison
- 80 products contain l-tryptophan
- 15 of those contain l-tryptophan and nothing else
- l-tryptophan is widely stocked — carried by 5 merchants
Serving size across these products log scale
100 mgtypical
500 mgour pick
0.3 mg
950 mg
Lowest priced
Bottle price only. Container sizes vary and servings per container are not stated consistently, so this is a starting point rather than a like-for-like comparison.
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride •…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
$9.74
500 mg per serving
Comprehensive formula featuring 150 mg of each of the 9 essential amino acids for peak fitness…Comprehensive formula featuring 150 mg of each of the 9 essential amino acids for peak fitness support; Promotes muscle health and recovery; Contains AjiPure® amino acids; Pharmaceutical grade supplement; Why are amino acids important? Amino acids are the building blocks of protein and play an essential role in many normal body functions. They help support muscle health, tissue repair, enzyme and
$9.95
150 mg per serving
A Force Factor Product Fuel Your Active Lifestyle Contains all 9 EAAs Delicious &…A Force Factor Product Fuel Your Active Lifestyle Contains all 9 EAAs Delicious & refreshing NO artificial color or flavors Premium quality and non-GMO
$12.99
25 mg per serving
Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary…Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary Supplement • Vegetarian/Vegan • Kosher • Amino Acids • Family Owned Since 1968 • Halal • GMP Quality Assured
$13.46
1 g per serving
Helps support healthy serotonin levels, restful sleep and regulates body's circadian rhythm;…Helps support healthy serotonin levels, restful sleep and regulates body's circadian rhythm; Helps combat jet lag; Important amino acid that must be obtained from diet or supplements; What are the benefits of taking Swanson L-Tryptophan 500 mg? Swanson L-Tryptophan provides 500 mg of the essential amino acid L-tryptophan per capsule to support healthy sleep, relaxation and emotional well-being. L-
$13.69
500 mg per serving
Most l-tryptophan per serving
Ranked by the amount stated on the label. mg is the unit most brands use for l-tryptophan, and only products measured that way are ranked here — the other 17 use a different unit and can't be compared like for like, but they are still listed above by price. Serving sizes differ between brands, so check the label for how many capsules or tablets that is.
Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary…Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary Supplement • Vegetarian/Vegan • Amino Acids • Family Owned Since 1968 • GMP Quality Assured
950 mg
$22.03
With organic spinach, kale, broccoli and alfalfa grass juice; Flavored with real, raw…With organic spinach, kale, broccoli and alfalfa grass juice; Flavored with real, raw chocolate cacao; Certified vegan; gluten free
777 mg
$37.49
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride •…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
500 mg
$9.74
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride •…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
500 mg
$18.74
Vegan • Relaxation • Supports Production of Serotonin (Relaxation, Balanced Mood) & Melatonin…Vegan • Relaxation • Supports Production of Serotonin (Relaxation, Balanced Mood) & Melatonin (Sleep) • Gluten Free • Dietary Supplement • 1gen™ Non-GMO • Sleep Support
500 mg
$19.12
Nothing but l-tryptophan
Products where l-tryptophan is the only ingredient we found — useful if you are building a stack deliberately and don't want extras you didn't choose.
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride •…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
$9.74
500 mg per serving
Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary…Supports Relaxation • Encourages Positive Mood • Promotes Restful Sleep • Non-GMO • A Dietary Supplement • Vegetarian/Vegan • Kosher • Amino Acids • Family Owned Since 1968 • Halal • GMP Quality Assured
$13.46
1 g per serving
Helps support healthy serotonin levels, restful sleep and regulates body's circadian rhythm;…Helps support healthy serotonin levels, restful sleep and regulates body's circadian rhythm; Helps combat jet lag; Important amino acid that must be obtained from diet or supplements; What are the benefits of taking Swanson L-Tryptophan 500 mg? Swanson L-Tryptophan provides 500 mg of the essential amino acid L-tryptophan per capsule to support healthy sleep, relaxation and emotional well-being. L-
$13.69
500 mg per serving
Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride •…Amino Acid • Supports Restful Sleep • Targeted Wellness • Potency - Purity - Pride • Vegetarian • Dietary Supplement • Helps maintain serotonin levels for healthy mood. • Supports a normal, healthy attitude during PMS. • Plays an important role in supporting natural, restful sleep. • May support a normal appetite.
$18.74
500 mg per serving
Vegan • Relaxation • Supports Production of Serotonin (Relaxation, Balanced Mood) & Melatonin…Vegan • Relaxation • Supports Production of Serotonin (Relaxation, Balanced Mood) & Melatonin (Sleep) • Gluten Free • Dietary Supplement • 1gen™ Non-GMO • Sleep Support
$19.12
500 mg per serving
Covers the most in one bottle
These contain l-tryptophan plus the most other ingredients we found — fewer bottles if the rest of your stack overlaps.
An Animal Product Super Vitamin Pak Designed For Athletes & Bodybuilders Daily essential…An Animal Product Super Vitamin Pak Designed For Athletes & Bodybuilders Daily essential vitamins and minerals Amino acids, protein complex and liver detox enzymes Performance Complex Including l-taurine and carnitine Includes Spectra™, an all-natural blend of 29 fruits, vegetables, and herbs
75 ingredients
$34.50
43 ingredients
$53.89
42 ingredients
$53.89
37 ingredients
$22.06
With plant proteins, nutrient-rich greens, probiotics and more; Flavored with real, raw…With plant proteins, nutrient-rich greens, probiotics and more; Flavored with real, raw vanilla; Certified vegan; Gluten free
33 ingredients
$36.99
Usually combined with
What actually shares a bottle with l-tryptophan, counted across these 80 products.
l-lysine · 57L-Valine · 56l-phenylalanine · 56L-Methionine · 56L-Leucine · 55L-Isoleucine · 43l-threonine · 43l-histidine · 40
Build a stack with l-tryptophan
Add the other ingredients you want and find the fewest bottles that cover them.
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