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5-HTP 5-Hydroxytryptophan 100 mg

Natural Factors Stress-Relax
4.6
★ ★ ★ ★ ★
(1635 ratings)
5-HTP 100 mg
Product Image
Score93

A specialized 100 mg 5-HTP tablet for targeted mood and relaxation support.

How scoring works
Quantity:60 Tablet(s) • (60 servings)
Goals:
Stress Relief
Mood Support
Sleep Support
Weight Loss

Score 93

A specialized 100 mg 5-HTP tablet for targeted mood and relaxation support.

How scoring works

Also available as

2 options
50 mg • 60 Tablet(s) servings 5-HTP 50 mg • 60 Tablet(s) • 60 servings $13.97 ($0.23 per serving) 120 servings 5-HTP 100 mg • 120 Tablet(s) • 120 servings $32.19 ($0.26 per serving)
$19.29($0.32 per serving)
iHerb
$ 20.97
Vitacost
$ 20.97
Amazon
$ 24.99
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Analysis

The 100 mg dose is well-aligned with standard recommendations for supporting a positive outlook and better sleep quality. Using a botanical source ensures you are getting a natural form of the amino acid in a sturdy tablet format.

I find this is a good option for people who prefer tablets over capsules and want a brand that specializes in stress management. It's a clean formula that focuses on a single, effective pathway for serotonin support.

Pros

  • Standard 100 mg effective dose
  • Includes calcium for stability
  • Trusted stress-management brand
  • Natural botanical source

Cons

  • Tablet format may be slower to dissolve
  • Higher price point than bulk brands

Warnings

  • Do not use if the seal is broken
  • May cause mild drowsiness

Nutrient quality

92 Highest impact

A robust 100 mg serving from a standardized botanical source ensures a reliable and bioavailable form of the active precursor. The inclusion of Calcium as Dicalcium Phosphate acts as a functional aid in the tablet matrix.

Ingredient transparency

98 Highest impact

Labeling clearly distinguishes the milligram amounts for all active components without the use of hidden blends. Specific component naming and clear usage directions provide an understandable experience for the consumer.

Customer satisfaction

92 Highest impact

Consistent consumer ratings and a solid review volume reflect widespread success with the formulation. Feedback indicates that the results match the intended purpose of emotional and sleep support.

Value for money

89 Highest impact

The cost per serving is reasonable for a standard 100 mg dose from a well-established brand. It offers a solid value proposition for individuals seeking reliable and straightforward serotonin support.

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Goals

Stress Relief
Impact
Highest effect
A- Goal FitA Strength of SupportB- CoverageA+ Formula Quality

Provides 100 mg of 5-HTP derived from Griffonia simplicifolia to support serotonin synthesis and emotional balance. Serotonin is a key neurotransmitter involved in regulating mood and the psychological response to stress.

The 100 mg dose is a clinically relevant standard for mood support and nighttime relaxation. The formula is straightforward and avoids complex mixtures, focusing entirely on a core neurochemical pathway.

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Mood Support
Impact
Highest effect
A Goal FitA- Strength of SupportC CoverageA+ Formula Quality

5-HTP (100mg) derived from Griffonia simplicifolia.

This focused formula provides a direct precursor to serotonin to support emotional balance and stress resilience.

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Sleep Support
Impact
Highest effect
A- Goal FitA- Strength of SupportB- CoverageA+ Formula Quality

5-HTP is provided in 100mg doses to support the conversion to sleep-regulating hormones.

Supporting serotonin levels may contribute to a better sleep-wake cycle and improved mental relaxation before rest.

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Weight Loss
Impact
Highest effect
B+ Goal FitA- Strength of SupportC CoverageA Formula Quality

Serotonin-mediated satiety is supported by a standardized 100mg dose of 5-HTP derived from Griffonia simplicifolia. This mechanism assists in appetite management and the reduction of cravings, which can improve caloric deficit adherence.

5-Hydroxytryptophan and calcium are the primary active components. These ingredients appear well-aligned for individuals focusing on hunger control during weight loss.

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Ingredients

IngredientAmount per serving
Calcium (Dicalcium Phosphate)
 70 mg
5-HTP (Griffonia simplicifolia)
 100 mg
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
5-HTP (Griffonia simplicifolia) · 100 mg OverallScore83
C+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA- Value
This 5-HTP supplement provides a reliable 100mg dose in a standard tablet format. It is a solid choice for mood support from a well-established and trusted brand in the supplement industry.
View ingredientView products
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5-HTP 100 mg Extra Strength

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5-HTP 5-Hydroxytryptophan 100 mg

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4.7
★★★★★
(944 ratings)
Selecting the larger 120-tablet supply of this same formula provides better long-term value and consistency. It ensures a steady supply of neurotransmitter precursors for several months of daily use.
Other sellers (2)
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5-HTP with Vitamin B6 & Vitamin C

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5-HTP 100 mg

Jarrow Formulas
4.6
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(1702 ratings)
Opting for high-purity veggie capsules from a trusted brand ensures a clean and consistent delivery format. It maintains a therapeutic dose of 100 mg for supporting daily emotional balance.
Other sellers (5)
94 Performance

5-HTP Plus+ 200 mg

NatureWise
4.5
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(5703 ratings)
Including active Vitamin B6 as P-5-P ensures the most efficient metabolic conversion of the amino acid into serotonin. The higher 200 mg dose provides more robust support for those seeking deeper mood and sleep assistance.
Other sellers (4)
96 Performance

5-HTP Enhanced with Vitamins B6 and C

Doctor's Best
4.8
★★★★★
(5550 ratings)
Adding critical cofactors like Vitamin B6 and C supports the entire internal synthesis process much better than a mineral blend. This ensures better biological utilization within the nervous system.
Other sellers (3)
93 Performance

5-HTP 100 mg Time Release

Natrol
4.6
★★★★★
(8263 ratings)
Utilizing time-release technology provides a steady supply of nutrients throughout the night, which can be more effective for maintaining sleep. It offers a more controlled delivery than standard tablets.
Other sellers (2)
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