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L-5-Hydroxytryptophan

amino acid

65
products
Updated April 2026

Dosage Range

3 mgavg 82.19 mg400 mg

L-5-Hydroxytryptophan is found in 162 supplement products from 33 brands. Dosages range from 3 to 400 mg, with an average of 82.19. The most common form is Capsule.

Top 5 Highest-Dosage L-5-Hydroxytryptophan Supplements

  1. Seratonin by Allergy Research Group — 400 mg
  2. 5-HTP Plus+ 200 mg by NatureWise — 200 mg
  3. Somnolin by Metagenics — 200 mg
  4. In Joy by Redd Remedies — 150 mg
  5. 5HTP 100 mg by Genestra Brands — 100 mg

Seratonin by Allergy Research Group has the highest L-5-Hydroxytryptophan dosage at 400 mg. HGH Surge by Source Naturals has the lowest at 50 mg.

All Products

showing 65 of 65

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Somnolin
● OTHER INGREDIENTS (1)
Metagenics
200 mg— DVTablet or Pill
In Joy
● OTHER INGREDIENTS (2)
Redd Remedies
150 mg— DVTablet or Pill
5-HTP 100
● OTHER INGREDIENTS (2)
DC
100 mg— DVCapsule
Calm/Recharge
● OTHER INGREDIENTS (1)
Allergy Research Group
100 mg— DVPowder
SeroSyn
● OTHER INGREDIENTS (1)
Metagenics
100 mg— DVCapsule
5-HTP Plus
● OTHER INGREDIENTS (2)
Natrol
100 mg— DVTablet or Pill
5-HTP
● OTHER INGREDIENTS (2)
Nature's Way
100 mg— DVTablet or Pill
5-HTP SAP 100 mg
● OTHER INGREDIENTS (2)
NFH
100 mg— DVCapsule
5-HTP w/SRT
● OTHER INGREDIENTS (2)
Jigsaw Health
100 mg— DVTablet or Pill
Sleep
● OTHER INGREDIENTS (1)
youtheory
100 mg— DVPowder
Sleep Nighttime Powder
● OTHER INGREDIENTS (1)
youtheory
100 mg— DVPowder
5-HTP 100 mg
● OTHER INGREDIENTS (2)
Foster Regal
100 mg— DVCapsule
5-HTP Plus Formula
● OTHER INGREDIENTS (1)
Douglas Laboratories
75 mg— DVCapsule
Anxiety Balance
● OTHER INGREDIENTS (1)
Priority One Nutritional Supplements
75 mg— DVCapsule
SIBO-MMC
● OTHER INGREDIENTS (2)
Priority One Nutritional Supplements
75 mg— DVCapsule
Relora Calm
● OTHER INGREDIENTS (2)
The Vitamin Shoppe
75 mg— DVCapsule
ClearMood
● OTHER INGREDIENTS (2)
AdvoCare
60 mg— DVCapsule
5-HTP & Melatonin
● OTHER INGREDIENTS (1)
Swanson
50 mg— DVCapsule
5-HTP With Vitamin B6 50 mg
● OTHER INGREDIENTS (1)
The Vitamin Shoppe
50 mg— DVCapsule
5-HTP 50 mg
● OTHER INGREDIENTS (1)
Solaray
50 mg— DVCapsule
At Ease PM
● OTHER INGREDIENTS (2)
Redd Remedies
50 mg— DVCapsule
5-HTP
● OTHER INGREDIENTS (1)
Douglas Laboratories
50 mg— DVCapsule
5-HTP 50 mg
● OTHER INGREDIENTS (2)
Foster Regal
50 mg— DVCapsule
Sleep-EzeViva Vitamins
50 mg— DVTablet or Pill
5-HTP
● OTHER INGREDIENTS (2)
DC
50 mg— DVCapsule
5-HTP 50 mg
● OTHER INGREDIENTS (2)
Swanson
50 mg— DVCapsule
5-HTP SAP 50 mg
● OTHER INGREDIENTS (2)
NFH
50 mg— DVCapsule
Somulin
● OTHER INGREDIENTS (1)
Pharmaxa Labs
45 mg— DVCapsule
PureBalance Seratonin
● OTHER INGREDIENTS (1)
Quality Of Life
33 mg— DVCapsule
R.E.M.
● OTHER INGREDIENTS (1)
Priority One Nutritional Supplements
30 mg— DVCapsule
At Ease
● OTHER INGREDIENTS (2)
Redd Remedies
25 mg— DVTablet or Pill
Super Hydroxy Max
● OTHER INGREDIENTS (2)
Douglas Laboratories
25 mg— DVTablet or Pill
5-Hydroxy Gaba
● OTHER INGREDIENTS (1)
Priority One Nutritional Supplements
15 mg— DVCapsule
Smokers Cleanse 3
● OTHER INGREDIENTS (1)
Renew Life
10 mg— DVCapsule
Mood Aid With 5-HTP & St. John's Wort
● OTHER INGREDIENTS (1)
Nature's Way
3 mg— DVCapsule
Maximum Strength 5-HTP 200 mgDiscontinued
● OTHER INGREDIENTS (1)
Swanson Ultra
200 mg— DVCapsule
Ultra 5-HTP FormulaDiscontinued
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
Douglas Laboratories
125 mg— DVCapsule
Enteric Coated 5-HTP Extra Strength 100 mgDiscontinued
● OTHER INGREDIENTS (3)
Swanson Ultra
100 mg— DVTablet or Pill
Extra-Strength 5-HTP 100 mgDiscontinued
● OTHER INGREDIENTS (2)
Swanson Ultra
100 mg— DVCapsule
5-HTP 100 mgDiscontinuedMRM
100 mg— DVCapsule
5-HTP With Vitamin B6 100 mgDiscontinued
● OTHER INGREDIENTS (2)
The Vitamin Shoppe
100 mg— DVCapsule
5-HTP 100 mgDiscontinued
● OTHER INGREDIENTS (1)
Klaire Labs
100 mg— DVCapsule
5-HTPDiscontinuedAllergy Research Group
50 mg— DVCapsule
5-HTP 50 mgDiscontinued
● OTHER INGREDIENTS (1)
Klaire Labs
50 mg— DVCapsule
5-HTP 50 mgDiscontinued
● OTHER INGREDIENTS (2)
Swanson Premium Brand
50 mg— DVCapsule
5-HTP 50 mgDiscontinuedMRM
50 mg— DVCapsule
HGH SurgeDiscontinued
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Source Naturals
50 mg— DVTablet or Pill

Frequently Asked Questions

How many products contain L-5-Hydroxytryptophan?

There are 162 supplement products containing L-5-Hydroxytryptophan from 33 brands in the NIH DSLD database.

What is the average L-5-Hydroxytryptophan dosage?

The average L-5-Hydroxytryptophan dosage across supplement products is 82.19 mg. Dosages range from 3 to 400 mg.

What is the most common form for L-5-Hydroxytryptophan supplements?

The most common product form for L-5-Hydroxytryptophan supplements is Capsule.

What brands make L-5-Hydroxytryptophan supplements?

There are 33 brands that make supplements containing L-5-Hydroxytryptophan in the NIH DSLD database.

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Quick Facts

Products
162
Brands
33
Avg Dose
82.19 mg
Common Form
Capsule
Category
amino acid