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5-HTP 50 mg

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4.7
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(14611 ratings)
5-HTP 50 mg
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Score80
A lower Griffonia-derived amount works well for a short, cautious trial. The small package, basic delivery, and incomplete safety detail limit its longer-term appeal.
How scoring works
Quantity:30 Capsule(s) • (30 servings)
Goals:
Mood Support
Sleep Support
Stress Relief

Score 80

A lower Griffonia-derived amount works well for a short, cautious trial. The small package, basic delivery, and incomplete safety detail limit its longer-term appeal.
How scoring works
$4.46($0.14 per serving)
Pure Formulas
$ 4.61
iHerb
$ 4.88
Daily Vita
$ 4.70
Vitacost
$ 5.37
Amazon
$ 4.46
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Analysis

The 50 mg amount supports cautious dose selection and may suit people sensitive to full-strength 5-HTP. Griffonia simplicifolia seed extract is identified, keeping the botanical source reasonably clear.

The ingredient may support mood, stress, or sleep through serotonin production, but the formula is intentionally narrow. No supporting active addresses relaxation, circadian timing, or daytime stress resilience.

The supplied information does not give an extract standardization percentage or a serotonin-medication warning. This smaller package is convenient for a short trial, though it offers less supply efficiency than the otherwise similar larger formats.

Who is it for
  • New 5-HTP users
  • People wanting a small package before committing
Best for
  • Lower starting doses
  • Short-term tolerance assessment

Pros

  • Provides a flexible 50 mg amount
  • Names Griffonia seed extract
  • Simple capsule is easy to assess

Cons

  • Small package is less efficient
  • No extract standardization
  • No complementary sleep or stress ingredients

Warnings

  • Do not combine 5-HTP with SSRIs, SNRIs, MAO inhibitors, triptans, or other serotonin-raising medicines without medical supervision.
  • Possible effects include nausea, digestive discomfort, drowsiness, and vivid dreams.
  • Use care with other sedating products until individual response is clear.

Nutrient quality

85 Highest impact

The named Griffonia seed extract gives the active a clear botanical source, although no standardization percentage is supplied. The 50 mg 5-HTP serving is a cautious starting amount, while the focused design avoids unrelated actives.

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Ingredient transparency

84 Highest impact

All supplied active ingredients have specific amounts, and no proprietary blend hides key doses. Serving count is available, but full intake directions, excipients, and a serotonin-medication warning are absent from the supplied label details.

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Customer satisfaction

70 High impact

The supplied aggregate rating is strong, though its reliability depends heavily on the available review volume. No review text is provided to identify repeated complaints or firsthand experiences tied to the intended uses.

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Value for money

77 High impact

Cost efficiency per equivalent active amount appears moderate, with the starting-level dose shaping practical value. The single-active formula does not use decorative ingredients to justify its cost.

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Goals

Mood Support
Impact
High effect
B Goal FitB Strength of SupportD- CoverageA+ Formula Quality
5-HTP · 50 mg

5-HTP at 50 mg directly supplies a serotonin precursor and is clearly aligned with mood support. Human evidence is mixed, so the product should not be treated as a substitute for evaluated mental-health care.

The named Griffonia source and simple delivery make the dose easy to understand. Combining 5-HTP with serotonergic antidepressants, monoamine oxidase inhibitors, or other serotonin-raising products may increase serotonin-syndrome risk.

Study evidence
5-HTP Supportive 9 studies
Sleep Support
Impact
High effect
B- Goal FitB- Strength of SupportC- CoverageA Formula Quality

5-HTP may support melatonin production through serotonin, but its sleep evidence is less consistent than evidence for melatonin itself. The lower amount supports cautious dose selection but may be modest for a full sleep effect.

The vegetable capsule provides straightforward conventional delivery. Griffonia seed extract is named without a standardization level, and 5-HTP may dangerously add to the effects of SSRIs, SNRIs, MAO inhibitors, or other serotonin-raising medicines.

Study evidence
5-HTP Supportive 1 study
Stress Relief
Impact
High effect
C Goal FitC+ Strength of SupportD CoverageA Formula Quality

A 50 mg 5-HTP capsule offers a lower starting amount for serotonin-related mood or sleep support. Griffonia simplicifolia seed extract is named, but its 5-HTP standardization is not provided.

Stress-relief evidence is situational rather than broad, and the formula covers only one neurotransmitter pathway. Combining 5-HTP with SSRIs, SNRIs, MAO inhibitors, or other serotonin-raising medicines can increase the risk of serotonin toxicity.

Study evidence
5-HTP Supportive 18 studies

Ingredients

IngredientAmount per serving
5-HTP (Griffonia simplicifolia Seed Extract)
50 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
B- Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyA- Value

The 50 mg serving offers a lower starting amount in a vegetable capsule. Griffonia simplicifolia seed extract is named, though no standardization percentage is supplied. Value is favorable per 100 mg, but the provided label information lacks a serotonin-medication warning.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The impact of 5-hydroxytryptophan supplementation on sleep quality and gut microbiota composition in older adults: A randomized controlled trial.
    Sutanto CN; Xia X; Heng CW; Tan YS; Lee DPS; Fam J; Kim JE · Clinical nutrition (Edinburgh, Scotland) · 2024
    Randomized trial30 participantsSleep Support for5-HTP
  2. Effect of a serotonin precursor and uptake inhibitor in anxiety disorders; a double-blind comparison of 5-hydroxytryptophan, clomipramine and placebo.
    Kahn RS; Westenberg HG; Verhoeven WM; Gispen-de Wied CC; Kamerbeek WD · International clinical psychopharmacology · 1987
    Randomized trial45 participantsStress Relief for5-HTP
  3. Acute L-5-hydroxytryptophan administration inhibits carbon dioxide-induced panic in panic disorder patients.
    Schruers K; van Diest R; Overbeek T; Griez E · Psychiatry research · 2003
    Randomized trial48 participantsStress Relief for5-HTP
  4. An open-label trial of L-5-hydroxytryptophan in subjects with romantic stress.
    Emanuele E; Bertona M; Minoretti P; Geroldi D · Neuro endocrinology letters · 2011
    Single-arm trial15 participantsStress Relief for5-HTP
  5. Sex-linked differences in cortisol, ACTH and prolactin responses to 5-hydroxy-tryptophan in healthy controls and minor and major depressed patients.
    Maes M; Vandewoude M; Schotte C; Maes L; Martin M; Blockx P · Acta psychiatrica Scandinavica · 1990
    Clinical trial120 participantsStress Relief for5-HTP
  6. Early pharmacological interventions for universal prevention of post-traumatic stress disorder (PTSD).
    Bertolini F; Robertson L; Bisson JI; Meader N; Churchill R; Ostuzzi G; Stein DJ; Williams T; Barbui C · The Cochrane database of systematic reviews · 2022
    Systematic review2,023 participants13 studies pooledStress Relief for5-HTP
  7. Pharmacology of rising oral doses of 5-hydroxytryptophan with carbidopa.
    Smarius LJ; Jacobs GE; Hoeberechts-Lefrandt DH; de Kam ML; van der Post JP; de Rijk R; van Pelt J; Schoemaker RC; Zitman FG; van Gerven JM; Gijsman HJ · Journal of psychopharmacology (Oxford, England) · 2008
    Randomized trialStress Relief for5-HTP
  8. Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode.
    Jangid P; Malik P; Singh P; Sharma M; Gulia AK · Asian journal of psychiatry · 2013
    Randomized trial70 participantsMood Support for5-HTP
  9. Effects of 5-hydroxytryptophan on distinct types of depression: a systematic review and meta-analysis.
    Javelle F; Lampit A; Bloch W; Häussermann P; Johnson SL; Zimmer P · Nutrition reviews · 2020
    Meta-analysis13 studies pooledMood Support for5-HTP
  10. The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial.
    Li S; Sutanto CN; Xia X; Kim JE · Nutrients · 2025
    Randomized trial30 participantsMood Support for5-HTP
  11. Effect of 5-Hydroxytryptophan on Fatigue in Quiescent Inflammatory Bowel Disease: A Randomized Controlled Trial.
    Truyens M; Lobatón T; Ferrante M; Bossuyt P; Vermeire S; Pouillon L; Dewint P; Cremer A; Peeters H; Lambrecht G; Louis E; Rahier JF; Dewit O; Muls V; Holvoet T; Vandermeulen L; Peeters A; Gonzales GB; Bos S; Laukens D; De Vos M · Gastroenterology · 2022
    Randomized trial166 participantsMood Support for5-HTP
  12. Tryptophan and 5-hydroxytryptophan for depression.
    Shaw K; Turner J; Del Mar C · The Cochrane database of systematic reviews · 2002
    Systematic review64 participants2 studies pooledMood Support for5-HTP
  13. 5-Hydroxytryptophan (5-HTP) and a MAOI (nialamide) in the treatment of depressions. A double-blind controlled study.
    Aliño JJ; Gutierrez JL; Iglesias ML · International pharmacopsychiatry · 1976
    Non-randomized trial30 participantsMood Support for5-HTP
  14. Enhanced tolerability of the 5-hydroxytryptophane challenge test combined with granisetron.
    Jacobs GE; Kamerling IM; de Kam ML; Derijk RH; van Pelt J; Zitman FG; van Gerven JM · Journal of psychopharmacology (Oxford, England) · 2010
    Randomized trialStress Relief for5-HTP