5-HTP 50 mg®

Other Combinations

Brand: Foster Regal

CapsuleOther CombinationsOn Market
Click to view full label

Net Contents

30 Capsule(s)

Serving Size

1–4 Capsule(s)

Servings Per Container

30

Supplement Form

Capsule

Bar Code (UPC/SKU)

3 64175 54030 4

Product Version

Item# 54030

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

3Active Ingredients

3 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report a %DV; 2 meet or exceed 100% DV.

2Dietary Attributes

Label states: Gluten-Free, Kosher.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1–4 Capsule(s) · 1 per day

IngredientAmount Per Serving% Daily Value
Vitamin C(Calcium Ascorbate)60 mg100%
Vitamin B6(Pyridoxine Hydrochloride)10 mg500%
L-5-Hydroxytryptophan(Griffonia simplicifolia)50 mg

Not Present

Other Ingredients

Vegetable Cellulosek-GelatinSilicaVegetable Magnesium Stearate

Target Groups

Adult (18 - 50 Years)KosherWomen (not pregnant or lactating)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, start with a low dose of 1 capsule taken with a meal. Increase the dose slowly (every 3-5 days) up to a maximum of 4 capsules taken daily. Total daily intake should be divided into two or more doses, with no more than 2 capsules per dose.

Warnings & Precautions

Precautions re: All Other

Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Precautions re: Pregnant or Nursing or Prescription Medications

Caution: This product should not be taken by children, pregnant or lactating women.

Precautions re: Children

Caution: This product should not be taken by children, pregnant or lactating women.

Precautions re: All Other

May cause gastrointestinal upset, diarrhea or nausea which usually disappears by reducing dosage or is minimized by taking with food. As with any supplement, if discomfort persists discontinue use. Those suffering from gut disorders such as ulcers, irritable bowel disease, Crohn's disease, celiac disease, etc., should not use 5-HTP.

Precautions re: Pregnant or Nursing or Prescription Medications

Those using MAO inhibitors, antidepressants, and drugs containing fenfluramine should not use 5-HTP.

Precautions re: All Other

May cause drowsiness. Do not use while driving or operating machinery.

Precautions re: Children

Keep out of reach of children.

Storage

Storage

Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

Formulation

Formula re: Contains

5-HTP is the precursor to serotonin, a mood and appetite regulating neurotransmitter produced within the body. It has been combined with Vitamin C and Vitamin B-6, an important cofactor in the conversion to serotonin. We use a natural extract that is buffered to minimize any potential gastric discomfort.

Formula re: Kosher

Mfg. in a Ko Kosher Certified, FDA Registered Facility, under Good Manufacturing Practices (GMPs)

Formulation re: Other

Mfg. in a Ko Kosher Certified, FDA Registered Facility, under Good Manufacturing Practices (GMPs)

Formulation re: Other

Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability.

Formula re: Contains

Hydroxytryptophan with Vitamin B-6 & Vitamin C Natural Griffonia seed extract

Formulation re: Other

Precursor to serotonin Buffered Gentle on the stomach Easy to swallow

Formulation re: Does NOT Contain

Gluten free

Formulation re: Other

Made in USA

Formula re: Kosher

This product certified KO Kosher Service

FDA Statements

FDA Statement of Identity

Dietary Supplement

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Foster Regal The best choice.

Seals/Symbols

This product certified KO Kosher Service

Manufacturer & Distributor

Distributor

Foster Regal Laboratories

115 S.C.T. Ct., White House, TN, 37188

Market Reference

$6.89 – $60.00· 35 listings
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Where to Buy Locally

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Research & Studies

  • Sepiapterin reductase deficiency

    J Friedman, S Galosi - GeneReviews®[Internet], 2025 - ncbi.nlm.nih.gov

    … , 1-6 mg/kg/day of 5-hydroxytryptophan (5-HTP) may provide … with levodopa with or without 5-HTP in the first year of life … Other agents used when levodopa/5-HTP/carbidopa are not …

    202527 citations
  • PTS-Related Tetrahydrobiopterin Deficiency (PTPSD)

    T Opladen, N Longo, N Blau - 2025 - europepmc.org

    … This usually resolves with time and appropriate medical therapy. Supplementation with neurotransmitter precursors can improve feeding issues, such as swallowing problems and …

    20252 citations
  • Sepiapterin Reductase Deficiency Synonyms: Dopa-Responsive Hypersomnia, DYT-SPR, SPR Deficiency

    J Friedman - europepmc.org

    … , 1-6 mg/kg/day of 5-hydroxytryptophan (5-HTP) may provide … with levodopa with or without 5-HTP in the first year of life … Other agents used when levodopa/5-HTP/carbidopa are not …

  • Stress and fatigue

    T Gruner, J Sarris - … Naturopathy: An evidence-based guide to …, 2014 - books.google.com

    … synthesis are tryptophan or 5-hydroxytryptophan (5-HTP). 113 Glutamine is needed for GABA … Mindfulness meditation or forms which foster'mental silence’68138139 attempt to foster …

    20145 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-02-23. DSLD Label ID: 261110. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.