Skip to content

L-Tryptophan

amino acid

181
products
Updated April 2026

Dosage Range

0 mgavg 305.88 mg2000 mg

L-Tryptophan is found in 399 supplement products from 96 brands. Dosages range from 0 to 2000 mg, with an average of 305.88. The most common form is Capsule.

Top 5 Highest-Dosage L-Tryptophan Supplements

  1. L-Tryptophan by Klaire Labs — 2000 mg
  2. L-Tryptophan 1500 mg by NusaPure — 1500 mg
  3. Serotonin Brain Food by NS Natural Stacks — 1250 mg
  4. L-Tryptophan 1,000 mg by AN Amazing Nutrition Amazing Formulas — 1000 mg
  5. ZZZ Cherry Bomb by Core Nutritionals — 1000 mg

L-Tryptophan by Klaire Labs has the highest L-Tryptophan dosage at 2000 mg. EAA Pure Blue Raspberry by NutraBio has the lowest at 75 mg.

Top 100 by Dosage

showing 100 of 181

Retailer links are affiliate links: SupLabel may earn a commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.

L-Tryptophan 1500 mg
● OTHER INGREDIENTS (1)
NusaPure
1500 mg— DVCapsule
Serotonin Brain Food
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
NS Natural Stacks
1250 mg— DVCapsule
L-Tryptophan 1,000 mg
● OTHER INGREDIENTS (2)
AN Amazing Nutrition Amazing Formulas
1000 mg— DVTablet or Pill
ZZZ Cherry Bomb
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Core Nutritionals
1000 mg— DVPowder
L-Tryptophan 1000 mg
● OTHER INGREDIENTS (2)
Protocol For Life Balance
1000 mg— DVTablet or Pill
ZZZ Pineapple Peach
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Core Nutritionals
1000 mg— DVPowder
SleepKion
1000 mg— DVCapsule
ZZZ Knockout Punch
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Core Nutritionals
1000 mg— DVPowder
L-Tryptophan 1000 mg
● OTHER INGREDIENTS (1)
AN Amazing Nutrition Amazing Formulas
1000 mg— DVTablet or Pill
L-Tryptophan 1000 mg
● OTHER INGREDIENTS (2)
Best Naturals
1000 mg— DVTablet or Pill
ZZZ Razzzberry Lemonade
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Core Nutritionals
1000 mg— DVPowder
L-Trytophan 1000 mg
● OTHER INGREDIENTS (2)
The Vitamin Shoppe
1000 mg— DVTablet or Pill
Optimized Tryptophan Plus
● OTHER INGREDIENTS (3)
Life Extension
1000 mg— DVCapsule
ZZZ Blueberry Lemonade
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Core Nutritionals
1000 mg— DVPowder
100% Whey Protein Fuel Chocolate Surge
● OTHER INGREDIENTS (1)
Twinlab
560 mg— DVPowder
100% Whey Protein Fuel Vanilla Slam
● OTHER INGREDIENTS (1)
Twinlab
560 mg— DVPowder
100% Whey Protein Fuel Strawberry Smash
● OTHER INGREDIENTS (1)
Twinlab
560 mg— DVPowder
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
Best Naturals
500 mg— DVCapsule
Density
● OTHER INGREDIENTS (3)
Beverly International
500 mg— DVTablet or Pill
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
Advanced Nutrition by Zahler
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (2)
Nutricost
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
Swanson
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
Bluebonnet
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (2)
Bronson Laboratories
500 mg— DVCapsule
I-Tryptophan
● OTHER INGREDIENTS (1)
Isotonix
500 mg— DVPowder
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
Natural Grocers by Vitamin Cottage
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (2)
Jarrow Formulas
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (1)
longlifenutri
500 mg— DVCapsule
L-Tryptophan 500 mg
● OTHER INGREDIENTS (2)
The Vitamin Shoppe
500 mg— DVCapsule
HIBERN8
● OTHER INGREDIENTS (5)
Nutrex Research
500 mg— DVCapsule
Best L-Tryptophan 500 mg
● OTHER INGREDIENTS (2)
Doctor's Best
500 mg— DVCapsule
Gorilla Mode EAAS Lemon Lime
● OTHER INGREDIENTS (1)
Gorilla Mind
450 mg— DVPowder
Gorilla Mode EAAS Jungle Juice
● OTHER INGREDIENTS (1)
Gorilla Mind
450 mg— DVPowder
Whey Protein Isolate Chocolate
● OTHER INGREDIENTS (1)
BioSteel
413 mg— DVPowder
Whey Protein Isolate Vanilla
● OTHER INGREDIENTS (1)
BioSteel
413 mg— DVPowder
New Mood
● OTHER INGREDIENTS (1)
Onnit
400 mg— DVCapsule
Melt Blue Raspberry
● OTHER INGREDIENTS (2)
Bowmar Nutrition
400 mg— DVPowder
Advanced Recovery Formula Chocolate
● OTHER INGREDIENTS (1)
BioSteel
386 mg— DVPowder
Advanced Recovery Formula Vanilla
● OTHER INGREDIENTS (1)
Biosteel
385 mg— DVPowder
PRE Watermleon
● OTHER INGREDIENTS (1)
Bowmar Nutrition
375 mg— DVPowder
BCAA + EAA
● OTHER INGREDIENTS (2)
Steel
300 mg— DVPowder
Sleep Optimizer
● OTHER INGREDIENTS (3)
Jarrow Formulas
300 mg— DVCapsule
Sleep SR
● OTHER INGREDIENTS (1)
Kaged Muscle
275 mg— DVCapsule
GH Stack Grape Flavor
● OTHER INGREDIENTS (2)
Universal
250 mg— DVPowder
Qualia Nootropic Energy Triple Berry Flavor
● OTHER INGREDIENTS (1)
Qualia
250 mg— DVLiquid
Sleep
● OTHER INGREDIENTS (1)
youtheory
250 mg— DVPowder
Sleep Nighttime Powder
● OTHER INGREDIENTS (1)
youtheory
250 mg— DVPowder
OxyDrene NAD+ Enhancer
⚠ EXCEEDS UL
● OTHER INGREDIENTS (4)
Novex Biotech
220 mg— DVCapsule
Oxydrene NAD+ Enhancer
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Novex Biotech
220 mg— DVCapsule
Sleep Answer
● OTHER INGREDIENTS (2)
Doctors' Preferred
200 mg— DVCapsule
Sleep-O-Max
● OTHER INGREDIENTS (2)
Maxi Health
200 mg— DVCapsule
Precision Amino Peach Mango Tea
● OTHER INGREDIENTS (1)
GNC Beyond Raw
200 mg— DVPowder
Night Pack: New Mood
● OTHER INGREDIENTS (1)
Onnit
200 mg— DVCapsule
BCAA Kiwi Bluebery
● OTHER INGREDIENTS (1)
Huge Nutrition
200 mg— DVPowder
GI Guard PM
● OTHER INGREDIENTS (2)
Protocol For Life Balance
200 mg— DVCapsule
Precision Amino Gummy Worm
● OTHER INGREDIENTS (2)
GNC Beyond Raw
200 mg— DVPowder
Sleep
● OTHER INGREDIENTS (1)
Terra Origin
150 mg— DVCapsule
SleepMode
● OTHER INGREDIENTS (2)
Evlution Nutrition
100 mg— DVCapsule
Garcinia Cambogia with Melatonin
● OTHER INGREDIENTS (3)
Angry Supplements
100 mg— DVTablet or Pill
Jocko Good Night
● OTHER INGREDIENTS (1)
Jocko Fuel
100 mg— DVCapsule
Qualia Life
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Qualia
100 mg— DVCapsule
ZMAg P.M.
● OTHER INGREDIENTS (3)
GNC Beyond Raw
100 mg— DVOther (e.g. tea bag)
PEVArx
● OTHER INGREDIENTS (1)
Innovus Pharmaceuticals
100 mg— DVCapsule
Skinny Dreams with Melatonin & Valerian Root
● OTHER INGREDIENTS (3)
Angry Supplements
100 mg— DVTablet or Pill
5-HTP Complex
● OTHER INGREDIENTS (2)
Orzax
100 mg— DVCapsule
Zinc Magnesium Amino Complex
● OTHER INGREDIENTS (3)
GNC Pro Performance
100 mg— DVTablet or Pill
Amino-9 Essentials
● OTHER INGREDIENTS (1)
NOW Sports
88 mg— DVTablet or Pill

Frequently Asked Questions

How many products contain L-Tryptophan?

There are 399 supplement products containing L-Tryptophan from 96 brands in the NIH DSLD database.

What is the average L-Tryptophan dosage?

The average L-Tryptophan dosage across supplement products is 305.88 mg. Dosages range from 0 to 2000 mg.

What is the most common form for L-Tryptophan supplements?

The most common product form for L-Tryptophan supplements is Capsule.

What brands make L-Tryptophan supplements?

There are 96 brands that make supplements containing L-Tryptophan in the NIH DSLD database.

Related Ingredients

Explore More

Quick Facts

Products
399
Brands
96
Avg Dose
305.88 mg
Common Form
Capsule
Category
amino acid