5-HTP Synergy

5-HTP Synergy

Designs for Health4.9 (11 ratings)
Format:Capsule Quantity: 90 Capsule(s) · 90 servings
Goals
$43.49 $0.48 per serving
Pure Formulas$43.49

About this product

A 50 mg serving allows a cautious trial of 5-HTP for serotonin-related mood, stress, or sleep support. Pyridoxal 5-phosphate provides vitamin B6 in an active form, though the supplied data do not show that it materially improves the 5-HTP effect.

The lower amount is easier to adjust than a high-strength tablet and may be preferable for sensitive users. It is unlikely to be a complete answer for sleep or stress because no circadian, relaxation, or broader mood-support ingredient is included.

The label data do not identify a Griffonia source or standardization percentage. A specific warning about serotonin-raising medicines is also absent despite that being the most important practical safety issue for 5-HTP.

Who is it for
  • People seeking a lower starting amount of 5-HTP
  • Users interested in mood, stress, or sleep support
Best for
  • Gradual 5-HTP dose selection
  • A simple 5-HTP and active-B6 combination

Pros

  • Provides a flexible 50 mg 5-HTP amount
  • Uses pyridoxal 5-phosphate vitamin B6
  • Single-capsule serving is convenient

Cons

  • Botanical source is not stated
  • No extract standardization is shown
  • Limited support beyond one serotonin-related pathway

Warnings

  • Do not combine 5-HTP with SSRIs, SNRIs, MAO inhibitors, triptans, or other serotonin-raising medicines without medical supervision.
  • 5-HTP may cause nausea, stomach discomfort, drowsiness, or vivid dreams.
  • The added vitamin B6 should be counted with B6 from other supplements to avoid unnecessary cumulative intake.

Product analysis

66 out of 100
A lower 5-HTP amount plus active-form B6 offers flexible serotonin-pathway support. Incomplete source and interaction labeling hold the formula back.

AI assessment of the formula, label and price. How scoring works

Nutrient quality80

No botanical source or active standardization is identified for the 5-HTP. The 50 mg 5-HTP serving is a cautious starting amount, while the added nutrients provide mixed additional value.

.
Ingredient transparency77

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.

.
Customer satisfaction58

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.

.
Value for money39

Cost efficiency per equivalent active amount appears poor, with the starting-level dose shaping practical value. Active vitamin B6 supports conversion pathways and is a coherent cofactor rather than decorative padding.

.
Format
Capsule
Container
90 Capsule(s)
Per serving
$0.48
Customer rating
4.9 · 11 ratings
Report analysis

Goals

Mood Support
Mood Support
Impact
High effect
B Ingredient FitD PathwaysA+ EvidenceA+ Formulation Logic
Vitamin B6 · 10 mg5-HTP · 50 mg

Vitamin B6 may help if low levels contribute to depressed mood. Extra B6 doesn't offer the same clear expectation when you're already getting enough. The accompanying 5-HTP is a building block for serotonin, but that role alone doesn't show that taking it improves everyday emotional well-being or treats depression.

How this product is rated for Mood Support

Ingredient fit76

Vitamin B6 may help when a shortage contributes to depressed mood.
Goal fit
5-HTP, Vitamin B6 provide the main ingredient connections to mood.
Dose adequacy
5-HTP 50 mg, Vitamin B6 10 mg. These amounts refer to one label serving; they do not imply daily intake or guaranteed benefit.

Pathways50

Vitamin B6 may help when a shortage contributes to depressed mood.
Depth
Vitamin B6 may help when a shortage contributes to depressed mood.
Breadth
Vitamin B6 may help when a shortage contributes to depressed mood.

Evidence96

Vitamin B6 may help when a shortage contributes to depressed mood. Benefits depend on the ingredient and the circumstances described.
Evidence strength
Vitamin B6 may help when a shortage contributes to depressed mood.
Studied preparation
The declared preparations do not make everyday mood improvement certain; the ingredient-specific limits still apply.

Formulation logic100

The ingredients can have individual roles without an extra partner. No particular conflict is identified.
Partner coverage
The relevant ingredients do not require an additional missing partner for their individual roles.
Conflicts
No particular ingredient conflict is identified.
Effective doses
The relevant ingredient amounts are disclosed; the reference comparisons do not guarantee a mood benefit.
Study evidence
5-HTP Supportive 9 studies
Vitamin B6 Supportive 19 studies
Sleep Support
Sleep Support
Impact
Moderate effect
B Ingredient FitD+ PathwaysC- EvidenceA+ Formulation Logic

5-HTP and vitamin B6 both contribute along the precursor-related pathway, with 5-HTP the clearest sleep-related active. Their combination does not establish an added sleep benefit.

The 50 mg 5-HTP and 10 mg B6 amounts each contribute only partially on this route. The formula remains focused on precursors rather than melatonin's separate sleep-timing role.

How this product is rated for Sleep Support

Ingredient fit76

5-HTP and B6 support the same precursor-related route, keeping the blend focused rather than broad.
Goal fit
Both credited ingredients relate to the same sleep pathway, with no off-goal actives.
Dose adequacy
The product lists 50 mg 5-HTP and 10 mg B6, each contributing partially on the shared route.

Pathways50

The precursor pathway is the only one with meaningful coverage.
Depth
The precursor route is strongest, with no timing or calming pathway represented.
Breadth
Only one of the three target routes has meaningful coverage.

Evidence58

5-HTP carries the clearest potential sleep contribution, while B6 adds a related but less direct role.
Evidence strength
5-HTP has the strongest potential role here, below melatonin's top contribution.
Studied preparation
5-HTP is listed by ingredient name, while B6 is identified as pyridoxal 5-phosphate.

Formulation logic100

The ingredients can contribute without a missing partner, but their shared route does not establish a combined benefit.
Partner coverage
Neither ingredient depends on an unlisted partner for its stated role.
Conflicts
No listed ingredient creates a bedtime conflict.
Effective doses
Both ingredients contribute, but neither reaches its full potential amount in this formula.
Study evidence
5-HTP Supportive 1 study
Vitamin B6 Disputed 7 studies
Stress Relief
Stress Relief
Impact
Moderate effect
B Ingredient FitF PathwaysC- EvidenceA+ Formulation Logic
Vitamin B6 · 10 mg

5-HTP may help with anxiety in some circumstances, but its usefulness for everyday stress remains uncertain. The serving provides 50 mg alongside vitamin B6. The anxiety connection is conditional, so the presence of these ingredients doesn't mean you can expect broad or lasting relief from daily pressures.

How this product is rated for Stress Relief

Ingredient fit76

Several ingredients relate to stress, with different practical limits on their effects.
Goal fit
Several ingredients relate to stress, with different practical limits on their effects.
Dose adequacy
5-HTP 50 mg. These are serving amounts, compared with daily reference quantities; they don't guarantee stress relief.

Pathways13

5-HTP relates most directly to mood and neurotransmitter production.
Depth
5-HTP relates most directly to mood and neurotransmitter production.
Breadth
5-HTP has a narrow connection to mood-related processes rather than broad stress relief.

Evidence56

5-HTP has conditional anxiety-related benefits; its usefulness for everyday stress is uncertain.
Evidence strength
5-HTP has conditional anxiety-related benefits; its usefulness for everyday stress is uncertain.
Studied preparation
The identified 5-HTP preparation doesn't remove the practical limits on its stress benefit.

Formulation logic100

The relevant ingredients have no identified missing partner or particular conflict. Their combination alone does not imply added benefit.
Partner coverage
No required ingredient partner is missing for the relevant ingredients.
Conflicts
No particular ingredient conflict is identified.
Effective doses
5-HTP is present at a disclosed amount. Its amount doesn't guarantee a stress benefit.
Study evidence
5-HTP Supportive 18 studies
Vitamin B6 Supportive 10 studies

Ingredients

IngredientAmount per servingScore
Vitamin B-6 (Pyridoxal 5-Phosphate)
 10 mg
5-HTP
50 mg 48
Gluten Free Adults 18–50
Report overview
5-HTP · 50 mg OverallScore48
D- Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value
5-HTP Synergy lists 50 mg of 5-HTP per serving and includes a specific warning about serotonin-modulating medicines. The botanical source isn't identified, and the cost per 100 mg is high.
How this ingredient is rated

Active Ingredient Quality & Bioavailability40

The compound is identified as 5-hydroxytryptophan, but no Griffonia source or standardization percentage is stated.
Botanical Source & Standardization
The label names 5-hydroxytryptophan but doesn't identify a botanical source or standardization percentage.

Dose, Safety & Label Transparency79

It states 50 mg per serving and includes a specific medicine interaction warning.
Dosage Potency & Range
The 50 mg amount is described as a standard starting amount in the supplied context.
Safety Warnings & Label Clarity
A specific warning about serotonin-modulating medicines is recorded.

Value0

The cost per 100 mg of 5-HTP is high.
Price per 100mg 5-HTP
The cost is high relative to a 100 mg amount of 5-HTP.
View ingredientView products
Loading alternative details
85 Performance

5-HTP 100 mg

NOW
Clearer botanical sourcing makes this a stronger quality alternative. Its 100 mg 5-HTP serving is more substantial than the original’s 50 mg amount. The same serious interaction caution with serotonin-raising medicines applies.
83 Performance

5-HTP 100 mg Extra Strength

Swanson
Clearer botanical sourcing makes this a stronger quality alternative. Its 100 mg 5-HTP serving is more substantial than the original’s 50 mg amount. The same serious interaction caution with serotonin-raising medicines applies.
83 Performance

5-HTP Enhanced with Vitamins B6 and C

Doctor's Best
A more focused formula and stronger disclosed ingredient profile make this a better quality choice. Its 100 mg 5-HTP serving is more substantial than the original’s 50 mg amount. The same serious interaction caution with serotonin-raising medicines applies.
84 Budget

5-HTP 50 mg

NOW
The lower recurring cost makes this a more economical eligible choice. Its 50 mg 5-HTP serving matches the original amount while offering a different formula or package choice. The same serious interaction caution with serotonin-raising medicines applies.
85 Budget

5-HTP 100 mg

Doctor's Best
The lower recurring cost makes this a more economical eligible choice. Its 100 mg 5-HTP serving is more substantial than the original’s 50 mg amount. The same serious interaction caution with serotonin-raising medicines applies.
82 Budget

5-HTP 50 mg

Swanson Premium Brand
The lower recurring cost makes this a more economical eligible choice. Its 50 mg 5-HTP serving matches the original amount while offering a different formula or package choice. The same serious interaction caution with serotonin-raising medicines applies.
83 Value

5-HTP 200mg

Best Naturals
Focused 5-HTP dosing and a lower recurring cost create a favorable quality-to-cost balance. A Griffonia source is identified, but active standardization remains incomplete. The same serious interaction caution with serotonin-raising medicines applies.
83 Value

5-HTP with Vitamin B6 & Vitamin C

Lake Avenue Nutrition
Focused 5-HTP dosing and a lower recurring cost create a favorable quality-to-cost balance. The active amount is disclosed, but botanical-source detail remains incomplete. The same serious interaction caution with serotonin-raising medicines applies.
82 Value

5-HTP 200 mg Maximum Strength

Swanson
Focused 5-HTP dosing and a lower recurring cost create a favorable quality-to-cost balance. A Griffonia source is identified, but active standardization remains incomplete. The same serious interaction caution with serotonin-raising medicines applies.
Report alternatives

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. High Dose Vitamin B6 Reduces Depression Symptoms.
    Field DT; Cracknell R; Biagi N · Depression and anxiety · 2026
    Randomized trial267 participantsMood Support forVitamin B6
  15. Can Vitamin B6 Help to Prevent Postpartum Depression? A Randomized Controlled Trial.
    Khodadad M; Bahadoran P; Kheirabadi GR; Sabzghabaee AM · International journal of preventive medicine · 2022
    Randomized trial81 participantsMood Support Stress Relief forVitamin B6
  16. Associations of Dietary Intake of Vitamin B6 and Plasma Pyridoxal 5'-Phosphate Level With Depression in US Adults: Findings From NHANES 2005-2010.
    Lu J; Mao H; Tan Y; Luo G · Brain and behavior · 2024
    Cross-sectional study24,683 participantsMood Support forVitamin B6
  17. Associations of dietary B vitamins intakes with depression in adults.
    Wu Y; Li S; Wang W; Zhang D · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2023
    Observational study17,732 participantsMood Support forVitamin B6
  18. Impact of vitamin B6 status on psychological distress in a longitudinal study of HIV-1 infection.
    Shor-Posner G; Feaster D; Blaney NT; Rocca H; Mantero-Atienza E; Szapocznik J; Eisdorfer C; Goodkin K; Baum MK · International journal of psychiatry in medicine · 1995
    Cohort study88 participantsMood Support forVitamin B6
  19. Efficacy of vitamins B1 and B6 as an adjunctive therapy to lithium in bipolar-I disorder: A double-blind, randomized, placebo-controlled, clinical trial.
    Zandifar A; Mousavi S; Schmidt NB; Badrfam R; Seif E; Qorbani M; Mehrabani Natanzi M · Journal of affective disorders · 2023
    Randomized trial66 participantsSleep Support forVitamin B6
  20. Therapeutic effects of magnesium and vitamin B6 in alleviating the symptoms of restless legs syndrome: a randomized controlled clinical trial.
    Jadidi A; Rezaei Ashtiani A; Khanmohamadi Hezaveh A; Aghaepour SM · BMC complementary medicine and therapies · 2023
    Randomized trial75 participantsSleep Support forVitamin B6
  21. Effects of poly-gamma-glutamic acid and vitamin B6 supplements on sleep status: a randomized intervention study.
    García-García C; Baik I · Nutrition research and practice · 2022
    Randomized trial47 participantsSleep Support forVitamin B6
  22. Effects of Vitamin B6 (Pyridoxine) and a B Complex Preparation on Dreaming and Sleep.
    Adventure-Heart DJ; Madden NA; Delfabbro P · Perceptual and motor skills · 2018
    Randomized trial100 participantsSleep Support forVitamin B6
  23. The effect of pyridoxine administration on melatonin secretion in normal men.
    Luboshitzky R; Ophir U; Nave R; Epstein R; Shen-Orr Z; Herer P · Neuro endocrinology letters · 2003
    Randomized trial12 participantsSleep Support forVitamin B6
  24. 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
  25. Effect of magnesium and vitamin B6 supplementation on mental health and quality of life in stressed healthy adults: Post-hoc analysis of a randomised controlled trial.
    Noah L; Dye L; Bois De Fer B; Mazur A; Pickering G; Pouteau E · Stress and health : journal of the International Society for the Investigation of Stress · 2021
    Randomized trialStress Relief forVitamin B6
  26. RENAL PROTECTIVE EFFECT AND CLINICAL ANALYSIS OF VITAMIN B 6 IN PATIENTS WITH SEPSIS.
    Wang Y; Lu WL; Feng WM; Xu W; Liu LH; He LM · Shock (Augusta, Ga.) · 2024
    Randomized trial128 participantsStress Relief forVitamin B6
  27. Superiority of magnesium and vitamin B6 over magnesium alone on severe stress in healthy adults with low magnesemia: A randomized, single-blind clinical trial.
    Pouteau E; Kabir-Ahmadi M; Noah L; Mazur A; Dye L; Hellhammer J; Pickering G; Dubray C · PloS one · 2019
    Randomized trial264 participantsStress Relief forVitamin B6
  28. Associations between dietary intake of B-vitamins and psychological disorders among Iranian women: a cross-sectional study.
    Mozaffari H; Darooghegi Mofrad M; Surkan PJ; Askari M; Azadbakht L · Public health nutrition · 2021
    Cross-sectional study447 participantsStress Relief forVitamin B6